Explain and cost

Explain output shows the work that a call completed. The example executes the names query with an explain record and reads its completed stages.

Example

Explain a query

query_text holds this document:

TRON

165 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	5C 3F6E616D65	txt "?name"
0A	0E 0D 00 0100 010000 00 04000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @4
17	2C 3F65	txt "?e"
1A	4C 6E616D65	txt "name"
1F	5C 3F6E616D65	txt "?name"
25	0E 15 00 0700 030000 00 17000000 1A0000 00 1F000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @17 → @1A → @1F
3A	0E 0D 00 0100 010000 00 25000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @25
47	5C 3F6E616D65	txt "?name"
4D	0E 0D 00 0100 010000 00 47000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @47
5A	5C 7768657265	txt "where"
60	0F 0A 5A000000 3A00 0000	map leaf, size 10: @5A → @3A
6A	4C 66696E64	txt "find"
6F	0F 0A 6A000000 0A00 0000	map leaf, size 10: @6A → @A
79	7C 6F726465724279	txt "orderBy"
81	0F 0A 79000000 4D00 0000	map leaf, size 10: @79 → @4D
8B	07 12 2A000000 6000 0000 6F000000 8100 0000	map branch, size 18, depth 0 (root), slots 1, 3, 5: @60 → @6F → @81
9D	8B000000 00000000	root → @8B; previous: none

python

198 B

explain = stardust.QueryExplain()
async with (await stardust.parse(query_text, "tron")) as definition, (await db.query(definition)) as query, (await query.run(explain=explain)):
    result = explain

TRON

1.1 kB

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 90060000000000 00	i64 1680
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 34080000000000 00	i64 2100
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 B6080000000000 00	i64 2230
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 00000000000000 00	i64 0
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 00000000000000 00	i64 0
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 00000000000000 00	i64 0
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 001D0000000000 00	i64 7424
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 1E230000000000 00	i64 8990
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 3C230000000000 00	i64 9020
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	BC 6172656E615F62 79746573	txt "arena_bytes"

Show all 106 nodes

Offset (hex)	Bytes (hex)	Meaning
130	02 90230000000000 00	i64 9104
139	0F 0A 24010000 3001 0000	map leaf, size 10: @124 → @130
143	3C 637075	txt "cpu"
147	02 842B0000000000 00	i64 11140
150	0F 0A 43010000 4701 0000	map leaf, size 10: @143 → @147
15A	4C 77616C6C	txt "wall"
15F	02 2E2C0000000000 00	i64 11310
168	0F 0A 5A010000 5F01 0000	map leaf, size 10: @15A → @15F
172	07 12 21800000 3901 0000 50010000 6801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @139 → @150 → @168
184	7C 65786563757465	txt "execute"
18C	02 00000000000000 00	i64 0
195	0F 0A 84010000 8C01 0000	map leaf, size 10: @184 → @18C
19F	4C 726F7773	txt "rows"
1A4	02 03000000000000 00	i64 3
1AD	0F 0A 9F010000 A401 0000	map leaf, size 10: @19F → @1A4
1B7	4C 706C616E	txt "plan"
1BC	02 26020000000000 00	i64 550
1C5	0F 0A B7010000 BC01 0000	map leaf, size 10: @1B7 → @1BC
1CF	3C 72756E	txt "run"
1D3	0F 0A CF010000 1201 0000	map leaf, size 10: @1CF → @112
1DD	07 12 01840000 AD01 0000 C5010000 D301 0000	map branch, size 18, depth 1, slots 0, 10, 15: @1AD → @1C5 → @1D3
1EF	5C 67726F7570	txt "group"
1F5	02 00000000000000 00	i64 0
1FE	0F 0A EF010000 F501 0000	map leaf, size 10: @1EF → @1F5
208	7C 636F6D70696C65	txt "compile"
210	02 9A010000000000 00	i64 410
219	0F 0A 08020000 1002 0000	map leaf, size 10: @208 → @210
223	AC 706172616D6574 657273	txt "parameters"
22E	0F 0A 23020000 B200 0000	map leaf, size 10: @223 → @B2
238	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
24A	02 03000000000000 00	i64 3
253	0F 0A 38020000 4A02 0000	map leaf, size 10: @238 → @24A
25D	5C 6F72646572	txt "order"
263	02 00000000000000 00	i64 0
26C	0F 0A 5D020000 6302 0000	map leaf, size 10: @25D → @263
276	07 0E C0000000 5302 0000 6C020000	map branch, size 14, depth 1, slots 6, 7: @253 → @26C
284	EC 6172656E615F63 61706163697479	txt "arena_capacity"
293	02 00004000000000 00	i64 4194304
29C	0F 0A 84020000 9302 0000	map leaf, size 10: @284 → @293
2A6	14 11 627564676574 5F757365645F6279 746573	txt "budget_used_bytes"
2B9	02 D2270000000000 00	i64 10194
2C2	0F 0A A6020000 B902 0000	map leaf, size 10: @2A6 → @2B9
2CC	07 0E 24000000 9C02 0000 C2020000	map branch, size 14, depth 1, slots 2, 5: @29C → @2C2
2DA	FC 6275646765745F 7265667573616C73	txt "budget_refusals"
2EA	02 00000000000000 00	i64 0
2F3	0F 0A DA020000 EA02 0000	map leaf, size 10: @2DA → @2EA
2FD	4C 776F726B	txt "work"
302	02 F8160000000000 00	i64 5880
30B	0F 0A FD020000 0203 0000	map leaf, size 10: @2FD → @302
315	07 0E 88000000 F302 0000 0B030000	map branch, size 14, depth 1, slots 3, 7: @2F3 → @30B
323	FC 6D656D6F72795F 7265667573616C73	txt "memory_refusals"
333	02 00000000000000 00	i64 0
33C	0F 0A 23030000 3303 0000	map leaf, size 10: @323 → @333
346	CC 6275646765745F 6279746573	txt "budget_bytes"
353	02 00823E71020000 00	i64 10489856512
35C	0F 0A 46030000 5303 0000	map leaf, size 10: @346 → @353
366	5C 746F74616C	txt "total"
36C	0F 0A 66030000 7201 0000	map leaf, size 10: @366 → @172
376	14 11 627564676574 5F7065616B5F6279 746573	txt "budget_peak_bytes"
389	02 542F0000000000 00	i64 12116
392	0F 0A 76030000 8903 0000	map leaf, size 10: @376 → @389
39C	07 16 13040000 3C03 0000 5C030000 6C03 0000 92030000	map branch, size 22, depth 1, slots 0, 1, 4, 10: @33C → @35C → @36C → @392
3B2	5C 7265747279	txt "retry"
3B8	02 00000000000000 00	i64 0
3C1	0F 0A B2030000 B803 0000	map leaf, size 10: @3B2 → @3B8
3CB	7C 72657472696573	txt "retries"
3D3	02 00000000000000 00	i64 0
3DC	0F 0A CB030000 D303 0000	map leaf, size 10: @3CB → @3D3
3E6	CC 6D656D6F72795F 6279746573	txt "memory_bytes"
3F3	02 6B170000000000 00	i64 5995
3FC	0F 0A E6030000 F303 0000	map leaf, size 10: @3E6 → @3F3
406	FC 6C6F61645F6465 66696E6974696F6E	txt "load_definition"
416	0F 0A 06040000 5200 0000	map leaf, size 10: @406 → @52
420	07 0E 01100000 FC03 0000 16040000	map branch, size 14, depth 1, slots 0, 12: @3FC → @416
42E	07 36 FBDA0000 9501 0000 DD010000 FE01 0000 19020000 2E02 0000 76020000 CC02 0000 15030000 9C03 0000 C1030000 DC03 0000 20040000	map branch, size 54, depth 0 (root), slots 0, 1, 3, 4, 5, 6, 7, 9, 11, 12, 14, 15: @195 → @1DD → @1FE → @219 → @22E → @276 → @2CC → @315 → @39C → @3C1 → @3DC → @420

Offset (hex)	Bytes (hex)	Meaning
464	2E040000 00000000	root → @42E; previous: none

Failure output

A failed call can still supply explain output for the stages that completed.

Read stages_completed.
Then read the fields of the stages that completed.

The record tables below give the fields, absent values, and time units of each operation.

A call's cost record describes that execution. It does not load stored plan history. Use the plan operation in Definitions with the explain action to read accepted plans and their history. Each revision reports its version, source and reason. Trial decisions include candidate proposals and measured verdicts.

Set page_size and max_bytes to bound one diagnostic response. The response includes the current accepted transaction, the complete plan state and a history page from one snapshot. Pass a nonzero next_after as the next page's argument.

The adaptive query planner can retry a capped plan with the statistics plan. Query explain reports those attempts in retry and retries.

cost

This record measures one explain stage. The cpu and wall fields are durations. The ABI gives 100-ns ticks. Thus, a time less than one tick is zero.

Field	Type	Unit	Range	Absent	Meaning
`cpu`	`timedelta \| None`	Host duration (100 ns ticks at the ABI)	Tick range	None	Thread CPU time. The call measures this value. Independent calls can differ.
`wall`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	—	Wall time. The call measures this value. Independent calls can differ.
`arena_bytes`	`int`	Bytes	Host type range	—	Bytes the stage allocated from the scratch arena of the call. Heap-owned outputs and the LuaJIT heap are not included. The call measures this value. Independent calls can differ.

build_explain

This record contains explain output for build.

Field	Type	Unit	Meaning
`prepare_expression`	`Cost`	None	—
`compile`	`Cost`	None	—
`total`	`Cost`	None	The cost of all stages. `arena_bytes` records the peak scratch-arena allocation.
`arena_capacity`	`int`	Bytes	Bytes the scratch arena reserved. The call measures this value. Independent calls can differ.
`stages_completed`	`int`	Count	Stages that ran.
`cache_hit`	`bool`	None	The leased runtime holds a compiled copy of the expression. The call measures this value. Independent calls can differ.

eval_explain

This record contains explain output for evaluate.

Field	Type	Unit	Meaning
`prepare_variables`	`Cost`	None	—
`evaluate`	`Cost`	None	—
`adopt_document`	`Cost`	None	—
`total`	`Cost`	None	The cost of all stages. `arena_bytes` records the peak scratch-arena allocation.
`arena_capacity`	`int`	Bytes	Bytes the scratch arena reserved. The call measures this value. Independent calls can differ.
`document_bytes`	`int`	Bytes	Used bytes of the native value, string and source buffers of the result. The call measures this value. Independent calls can differ.
`stages_completed`	`int`	Count	Stages that ran.

query_explain

This record contains explain output for query run. The compile, plan, execute, group and order fields divide the wall time of run into stages.

Field	Type	Unit	Range	Meaning
`load_definition`	`Cost`	None	Host type range	—
`parameters`	`Cost`	None	Host type range	—
`run`	`Cost`	None	Host type range	Planning, execution and aggregation. Pages render later, in next.
`total`	`Cost`	None	Host type range	The cost of all stages. `arena_bytes` records the peak scratch-arena allocation.
`arena_capacity`	`int`	Bytes	Host type range	Bytes the scratch arena reserved. The call measures this value. Independent calls can differ.
`work`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	Thread CPU duration consumed by the query. The call measures this value. Independent calls can differ.
`rows`	`int`	Count	Host type range	Result rows.
`compile`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	The call measures this value. Independent calls can differ.
`plan`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	The call measures this value. Independent calls can differ.
`execute`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	Production of solutions. A streamed result produces solutions while pages render. Thus, execute measures only the solutions that run reads. The call measures this value. Independent calls can differ.
`group`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	Aggregates, windows and computed columns. The call measures this value. Independent calls can differ.
`order`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	The call measures this value. Independent calls can differ.
`memory_bytes`	`int`	Bytes	Host type range	The most working memory the run held reserved in the database's memory budget at once. The call measures this value. Independent calls can differ.
`memory_refusals`	`int`	Count	Host type range	Reservations of the run that the memory budget granted less than asked. The call measures this value. Independent calls can differ.
`budget_bytes`	`int`	Bytes	Host type range	The database's memory budget (`memory_budget_bytes`).
`budget_used_bytes`	`int`	Bytes	Host type range	Bytes every query of the database held reserved when run returned. The call measures this value. Independent calls can differ.
`budget_peak_bytes`	`int`	Bytes	Host type range	The most bytes the database's queries held reserved at once since it opened. The call measures this value. Independent calls can differ.
`budget_refusals`	`int`	Count	Host type range	Reservations the database's budget granted less than asked since it opened. The call measures this value. Independent calls can differ.
`retry`	`timedelta`	Host duration (100 ns ticks at the ABI)	Tick range	Thread CPU duration of the attempts given up because the planner's plan passed its cap. work includes it. The call measures this value. Independent calls can differ.
`stages_completed`	`int`	Count	Host type range	Stages that ran.
`retries`	`int`	Count	Host type range	Attempts given up because the planner's plan passed its cap; the query then ran the statistics' plan within the rest of its budget.

mutation_explain

This record contains explain output for mutation run.

Field	Type	Unit	Meaning
`load_definition`	`Cost`	None	—
`parameters`	`Cost`	None	—
`run`	`Cost`	None	—
`total`	`Cost`	None	The cost of all stages. `arena_bytes` records the peak scratch-arena allocation.
`arena_capacity`	`int`	Bytes	Bytes the scratch arena reserved. The call measures this value. Independent calls can differ.
`stages_completed`	`int`	Count	Stages that ran.
`attempts`	`int`	Count	Evaluations. More than one when a concurrent write forced a retry.

patch_explain

This record contains explain output for merge_patch.

Field	Type	Unit	Meaning
`copy_patch`	`Cost`	None	—
`commit`	`Cost`	None	Validation and the commit.
`total`	`Cost`	None	The cost of all stages. `arena_bytes` records the peak scratch-arena allocation.
`arena_capacity`	`int`	Bytes	Bytes the scratch arena reserved. The call measures this value. Independent calls can differ.
`stages_completed`	`int`	Count	Stages that ran.

Explain examples

The generator captured each result from the native library.

Inspect one measured cost stage

expression_text holds this document:

TRON

47 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	1C 2B	txt "+"
06	2C 3F78	txt "?x"
09	02 01000000000000 00	i64 1
12	0E 15 00 0700 030000 00 04000000 060000 00 09000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @4 → @6 → @9
27	12000000 00000000	root → @12; previous: none

python

179 B

explain = stardust.BuildExplain()
async with (await stardust.parse(expression_text, "tron")) as expression, (await stardust.build(expression, explain)):
    result = explain.total

TRON

108 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	BC 6172656E615F62 79746573	txt "arena_bytes"
10	02 00000000000000 00	i64 0
19	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
23	3C 637075	txt "cpu"
27	02 46000000000000 00	i64 70
30	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
3A	4C 77616C6C	txt "wall"
3F	02 50000000000000 00	i64 80
48	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
52	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
64	52000000 00000000	root → @52; previous: none

Explain expression compilation

expression_text holds this document:

TRON

47 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	1C 2B	txt "+"
06	2C 3F78	txt "?x"
09	02 01000000000000 00	i64 1
12	0E 15 00 0700 030000 00 04000000 060000 00 09000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @4 → @6 → @9
27	12000000 00000000	root → @12; previous: none

python

173 B

explain = stardust.BuildExplain()
async with (await stardust.parse(expression_text, "tron")) as expression, (await stardust.build(expression, explain)):
    result = explain

TRON

486 B

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 00000000000000 00	i64 0
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 00000000000000 00	i64 0
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 0A000000000000 00	i64 10
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 00000000000000 00	i64 0
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 28000000000000 00	i64 40
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 28000000000000 00	i64 40
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 00000000000000 00	i64 0
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 32000000000000 00	i64 50
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 3C000000000000 00	i64 60
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	14 12 707265706172 655F657870726573 73696F6E	txt "prepare_expression"
138	0F 0A 24010000 5200 0000	map leaf, size 10: @124 → @52
142	7C 636F6D70696C65	txt "compile"
14A	0F 0A 42010000 B200 0000	map leaf, size 10: @142 → @B2
154	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
166	02 02000000000000 00	i64 2
16F	0F 0A 54010000 6601 0000	map leaf, size 10: @154 → @166
179	EC 6172656E615F63 61706163697479	txt "arena_capacity"
188	02 00000100000000 00	i64 65536
191	0F 0A 79010000 8801 0000	map leaf, size 10: @179 → @188
19B	5C 746F74616C	txt "total"
1A1	0F 0A 9B010000 1201 0000	map leaf, size 10: @19B → @112
1AB	9C 63616368655F68 6974	txt "cache_hit"
1B5	09	bit true
1B6	0F 0A AB010000 B501 0000	map leaf, size 10: @1AB → @1B5
1C0	07 1E D2480000 3801 0000 4A010000 6F01 0000 91010000 A101 0000 B6010000	map branch, size 30, depth 0 (root), slots 1, 4, 6, 7, 11, 14: @138 → @14A → @16F → @191 → @1A1 → @1B6
1DE	C0010000 00000000	root → @1C0; previous: none

Explain patch validation and commit

seed_text holds this document:

TRON

449 B

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	3C 616765	txt "age"
008	02 24000000000000 00	i64 36
011	0F 0A 04000000 0800 0000	map leaf, size 10: @4 → @8
01B	4C 726F6C65	txt "role"
020	8C 656E67696E6565 72	txt "engineer"
029	0F 0A 1B000000 2000 0000	map leaf, size 10: @1B → @20
033	4C 6E616D65	txt "name"
038	3C 416461	txt "Ada"
03C	0F 0A 33000000 3800 0000	map leaf, size 10: @33 → @38
046	07 12 00910000 1100 0000 29000000 3C00 0000	map branch, size 18, depth 0 (root), slots 8, 12, 15: @11 → @29 → @3C
058	5C 236C696E6B	txt "#link"
05E	5C 235F616461	txt "#_ada"
064	0F 0A 58000000 5E00 0000	map leaf, size 10: @58 → @5E
06E	3C 616765	txt "age"
072	02 29000000000000 00	i64 41
07B	0F 0A 6E000000 7200 0000	map leaf, size 10: @6E → @72
085	6C 6D656E746F72	txt "mentor"
08C	0F 0A 85000000 6400 0000	map leaf, size 10: @85 → @64
096	4C 726F6C65	txt "role"
09B	8C 656E67696E6565 72	txt "engineer"
0A4	0F 0A 96000000 9B00 0000	map leaf, size 10: @96 → @9B
0AE	4C 6E616D65	txt "name"
0B3	3C 426F62	txt "Bob"
0B7	0F 0A AE000000 B300 0000	map leaf, size 10: @AE → @B3
0C1	07 16 00990000 7B00 0000 8C000000 A400 0000 B7000000	map branch, size 22, depth 0 (root), slots 8, 11, 12, 15: @7B → @8C → @A4 → @B7
0D7	3C 616765	txt "age"
0DB	02 1D000000000000 00	i64 29
0E4	0F 0A D7000000 DB00 0000	map leaf, size 10: @D7 → @DB
0EE	4C 726F6C65	txt "role"
0F3	8C 64657369676E65 72	txt "designer"
0FC	0F 0A EE000000 F300 0000	map leaf, size 10: @EE → @F3
106	4C 6E616D65	txt "name"
10B	2C 4379	txt "Cy"
10E	0F 0A 06010000 0B01 0000	map leaf, size 10: @106 → @10B
118	07 12 00910000 E400 0000 FC000000 0E01 0000	map branch, size 18, depth 0 (root), slots 8, 12, 15: @E4 → @FC → @10E
12A	6C 617574686F72	txt "author"
131	5C 736D6F6B65	txt "smoke"
137	0F 0A 2A010000 3101 0000	map leaf, size 10: @12A → @131
141	6C 726561736F6E	txt "reason"
148	4C 73656564	txt "seed"
14D	0F 0A 41010000 4801 0000	map leaf, size 10: @141 → @148
157	07 0E 40080000 3701 0000 4D010000	map branch, size 14, depth 0 (root), slots 6, 11: @137 → @14D
165	4C 235F7478	txt "#_tx"
16A	0F 0A 65010000 5701 0000	map leaf, size 10: @165 → @157
174	4C 235F6379	txt "#_cy"
179	0F 0A 74010000 1801 0000	map leaf, size 10: @174 → @118
183	5C 235F626F62	txt "#_bob"
189	0F 0A 83010000 C100 0000	map leaf, size 10: @183 → @C1
193	5C 235F616461	txt "#_ada"
199	0F 0A 93010000 4600 0000	map leaf, size 10: @193 → @46
1A3	07 16 88210000 6A01 0000 79010000 8901 0000 99010000	map branch, size 22, depth 0 (root), slots 3, 7, 8, 13: @16A → @179 → @189 → @199
1B9	A3010000 00000000	root → @1A3; previous: none

python

154 B

explain = stardust.PatchExplain()
async with (await stardust.parse(seed_text, "tron")) as seed:
    (await db.merge_patch(seed, explain))
result = explain

TRON

461 B

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 180C0000000000 00	i64 3096
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 48080000000000 00	i64 2120
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 5C080000000000 00	i64 2140
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 481F0000000000 00	i64 8008
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 F8020000000000 00	i64 760
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 1EB40000000000 00	i64 46110
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 6E2B0000000000 00	i64 11118
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 120C0000000000 00	i64 3090
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 56BD0000000000 00	i64 48470
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
136	02 02000000000000 00	i64 2
13F	0F 0A 24010000 3601 0000	map leaf, size 10: @124 → @136
149	EC 6172656E615F63 61706163697479	txt "arena_capacity"
158	02 00004000000000 00	i64 4194304
161	0F 0A 49010000 5801 0000	map leaf, size 10: @149 → @158
16B	5C 746F74616C	txt "total"
171	0F 0A 6B010000 1201 0000	map leaf, size 10: @16B → @112
17B	6C 636F6D6D6974	txt "commit"
182	0F 0A 7B010000 B200 0000	map leaf, size 10: @17B → @B2
18C	AC 636F70795F7061 746368	txt "copy_patch"
197	0F 0A 8C010000 5200 0000	map leaf, size 10: @18C → @52
1A1	07 0E 08100000 8201 0000 97010000	map branch, size 14, depth 1, slots 3, 12: @182 → @197
1AF	07 16 C0880000 3F01 0000 61010000 7101 0000 A1010000	map branch, size 22, depth 0 (root), slots 6, 7, 11, 15: @13F → @161 → @171 → @1A1
1C5	AF010000 00000000	root → @1AF; previous: none

Explain mutation execution

birthday_text holds this document:

TRON

221 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	2C 3F65	txt "?e"
07	0E 0D 00 0100 010000 00 04000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @4
14	2C 3F65	txt "?e"
17	4C 6E616D65	txt "name"
1C	3C 416461	txt "Ada"
20	0E 15 00 0700 030000 00 14000000 170000 00 1C000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @14 → @17 → @1C
35	0E 0D 00 0100 010000 00 20000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @20
42	5C 7768657265	txt "where"
48	0F 0A 42000000 3500 0000	map leaf, size 10: @42 → @35
52	4C 66696E64	txt "find"
57	0F 0A 52000000 0700 0000	map leaf, size 10: @52 → @7
61	07 0E 0A000000 4800 0000 57000000	map branch, size 14, depth 0 (root), slots 1, 3: @48 → @57
6F	3C 616765	txt "age"
73	02 25000000000000 00	i64 37
7C	0F 0A 6F000000 7300 0000	map leaf, size 10: @6F → @73
86	2C 3F65	txt "?e"
89	0F 0A 86000000 7C00 0000	map leaf, size 10: @86 → @7C
93	5C 7175657279	txt "query"
99	0F 0A 93000000 6100 0000	map leaf, size 10: @93 → @61
A3	5C 7061746368	txt "patch"
A9	0F 0A A3000000 8900 0000	map leaf, size 10: @A3 → @89
B3	07 0E 40020000 9900 0000 A9000000	map branch, size 14, depth 2, slots 6, 9: @99 → @A9
C1	07 0A 01000000 B300 0000	map branch, size 10, depth 1, slots 0: @B3
CB	07 0A 80000000 C100 0000	map branch, size 10, depth 0 (root), slots 7: @C1
D5	CB000000 00000000	root → @CB; previous: none

python

208 B

explain = stardust.MutationExplain()
async with (await stardust.parse(birthday_text, "tron")) as birthday, (await db.mutation(birthday)) as mutation:
    (await mutation.run(explain=explain))
result = explain

TRON

606 B

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 10090000000000 00	i64 2320
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 A4060000000000 00	i64 1700
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 CC060000000000 00	i64 1740
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 00000000000000 00	i64 0
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 0A000000000000 00	i64 10
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 0A000000000000 00	i64 10
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 50AB0000000000 00	i64 43856
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 262A0000000000 00	i64 10790
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 88900000000000 00	i64 37000
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	BC 6172656E615F62 79746573	txt "arena_bytes"

Show all 58 nodes

Offset (hex)	Bytes (hex)	Meaning
130	02 60B40000000000 00	i64 46176
139	0F 0A 24010000 3001 0000	map leaf, size 10: @124 → @130
143	3C 637075	txt "cpu"
147	02 56310000000000 00	i64 12630
150	0F 0A 43010000 4701 0000	map leaf, size 10: @143 → @147
15A	4C 77616C6C	txt "wall"
15F	02 E0970000000000 00	i64 38880
168	0F 0A 5A010000 5F01 0000	map leaf, size 10: @15A → @15F
172	07 12 21800000 3901 0000 50010000 6801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @139 → @150 → @168
184	3C 72756E	txt "run"
188	0F 0A 84010000 1201 0000	map leaf, size 10: @184 → @112
192	AC 706172616D6574 657273	txt "parameters"
19D	0F 0A 92010000 B200 0000	map leaf, size 10: @192 → @B2
1A7	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
1B9	02 03000000000000 00	i64 3
1C2	0F 0A A7010000 B901 0000	map leaf, size 10: @1A7 → @1B9
1CC	EC 6172656E615F63 61706163697479	txt "arena_capacity"
1DB	02 00004000000000 00	i64 4194304
1E4	0F 0A CC010000 DB01 0000	map leaf, size 10: @1CC → @1DB
1EE	5C 746F74616C	txt "total"
1F4	0F 0A EE010000 7201 0000	map leaf, size 10: @1EE → @172
1FE	8C 617474656D7074 73	txt "attempts"
207	02 01000000000000 00	i64 1
210	0F 0A FE010000 0702 0000	map leaf, size 10: @1FE → @207
21A	FC 6C6F61645F6465 66696E6974696F6E	txt "load_definition"
22A	0F 0A 1A020000 5200 0000	map leaf, size 10: @21A → @52
234	07 22 E2A80000 8801 0000 9D010000 C201 0000 E4010000 F401 0000 10020000 2A02 0000	map branch, size 34, depth 0 (root), slots 1, 5, 6, 7, 11, 13, 15: @188 → @19D → @1C2 → @1E4 → @1F4 → @210 → @22A

Offset (hex)	Bytes (hex)	Meaning
256	34020000 00000000	root → @234; previous: none

Explain expression evaluation

expression_text holds this document:

TRON

47 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	1C 2B	txt "+"
06	2C 3F78	txt "?x"
09	02 01000000000000 00	i64 1
12	0E 15 00 0700 030000 00 04000000 060000 00 09000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @4 → @6 → @9
27	12000000 00000000	root → @12; previous: none

input_text holds this document:

TRON

33 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	1C 78	txt "x"
06	02 29000000000000 00	i64 41
0F	0F 0A 04000000 0600 0000	map leaf, size 10: @4 → @6
19	0F000000 00000000	root → @F; previous: none

python

279 B

explain = stardust.EvalExplain()
async with (await stardust.parse(expression_text, "tron")) as expression, (await stardust.build(expression)) as program, \
        (await stardust.parse(input_text, "tron")) as input, (await program.evaluate(input, explain)):
    result = explain

TRON

634 B

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 00000000000000 00	i64 0
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 00000000000000 00	i64 0
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 0A000000000000 00	i64 10
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 00000000000000 00	i64 0
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 96000000000000 00	i64 150
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 96000000000000 00	i64 150
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 00000000000000 00	i64 0
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 00000000000000 00	i64 0
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 00000000000000 00	i64 0
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	BC 6172656E615F62 79746573	txt "arena_bytes"

Show all 59 nodes

Offset (hex)	Bytes (hex)	Meaning
130	02 00000000000000 00	i64 0
139	0F 0A 24010000 3001 0000	map leaf, size 10: @124 → @130
143	3C 637075	txt "cpu"
147	02 A0000000000000 00	i64 160
150	0F 0A 43010000 4701 0000	map leaf, size 10: @143 → @147
15A	4C 77616C6C	txt "wall"
15F	02 AA000000000000 00	i64 170
168	0F 0A 5A010000 5F01 0000	map leaf, size 10: @15A → @15F
172	07 12 21800000 3901 0000 50010000 6801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @139 → @150 → @168
184	EC 646F63756D656E 745F6279746573	txt "document_bytes"
193	02 2A000000000000 00	i64 42
19C	0F 0A 84010000 9301 0000	map leaf, size 10: @184 → @193
1A6	14 11 707265706172 655F766172696162 6C6573	txt "prepare_variables"
1B9	0F 0A A6010000 5200 0000	map leaf, size 10: @1A6 → @52
1C3	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
1D5	02 03000000000000 00	i64 3
1DE	0F 0A C3010000 D501 0000	map leaf, size 10: @1C3 → @1D5
1E8	EC 6172656E615F63 61706163697479	txt "arena_capacity"
1F7	02 00000100000000 00	i64 65536
200	0F 0A E8010000 F701 0000	map leaf, size 10: @1E8 → @1F7
20A	EC 61646F70745F64 6F63756D656E74	txt "adopt_document"
219	0F 0A 0A020000 1201 0000	map leaf, size 10: @20A → @112
223	07 0E 14000000 0002 0000 19020000	map branch, size 14, depth 1, slots 2, 4: @200 → @219
231	8C 6576616C756174 65	txt "evaluate"
23A	0F 0A 31020000 B200 0000	map leaf, size 10: @231 → @B2
244	5C 746F74616C	txt "total"
24A	0F 0A 44020000 7201 0000	map leaf, size 10: @244 → @172
254	07 1E E20A0000 9C01 0000 B9010000 DE01 0000 23020000 3A02 0000 4A020000	map branch, size 30, depth 0 (root), slots 1, 5, 6, 7, 9, 11: @19C → @1B9 → @1DE → @223 → @23A → @24A

Offset (hex)	Bytes (hex)	Meaning
272	54020000 00000000	root → @254; previous: none

Explain query execution

query_text holds this document:

TRON

165 B

Offset (hex)	Bytes (hex)	Meaning
00	54 52 4F 4E	magic TRON
04	5C 3F6E616D65	txt "?name"
0A	0E 0D 00 0100 010000 00 04000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @4
17	2C 3F65	txt "?e"
1A	4C 6E616D65	txt "name"
1F	5C 3F6E616D65	txt "?name"
25	0E 15 00 0700 030000 00 17000000 1A0000 00 1F000000	array leaf, size 21, shift 0, bitmap 0007, count 3 (root): @17 → @1A → @1F
3A	0E 0D 00 0100 010000 00 25000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @25
47	5C 3F6E616D65	txt "?name"
4D	0E 0D 00 0100 010000 00 47000000	array leaf, size 13, shift 0, bitmap 0001, count 1 (root): @47
5A	5C 7768657265	txt "where"
60	0F 0A 5A000000 3A00 0000	map leaf, size 10: @5A → @3A
6A	4C 66696E64	txt "find"
6F	0F 0A 6A000000 0A00 0000	map leaf, size 10: @6A → @A
79	7C 6F726465724279	txt "orderBy"
81	0F 0A 79000000 4D00 0000	map leaf, size 10: @79 → @4D
8B	07 12 2A000000 6000 0000 6F000000 8100 0000	map branch, size 18, depth 0 (root), slots 1, 3, 5: @60 → @6F → @81
9D	8B000000 00000000	root → @8B; previous: none

python

198 B

explain = stardust.QueryExplain()
async with (await stardust.parse(query_text, "tron")) as definition, (await db.query(definition)) as query, (await query.run(explain=explain)):
    result = explain

TRON

1.1 kB

Offset (hex)	Bytes (hex)	Meaning
000	54 52 4F 4E	magic TRON
004	BC 6172656E615F62 79746573	txt "arena_bytes"
010	02 90060000000000 00	i64 1680
019	0F 0A 04000000 1000 0000	map leaf, size 10: @4 → @10
023	3C 637075	txt "cpu"
027	02 50050000000000 00	i64 1360
030	0F 0A 23000000 2700 0000	map leaf, size 10: @23 → @27
03A	4C 77616C6C	txt "wall"
03F	02 5A050000000000 00	i64 1370
048	0F 0A 3A000000 3F00 0000	map leaf, size 10: @3A → @3F
052	07 12 21800000 1900 0000 30000000 4800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @19 → @30 → @48
064	BC 6172656E615F62 79746573	txt "arena_bytes"
070	02 00000000000000 00	i64 0
079	0F 0A 64000000 7000 0000	map leaf, size 10: @64 → @70
083	3C 637075	txt "cpu"
087	02 00000000000000 00	i64 0
090	0F 0A 83000000 8700 0000	map leaf, size 10: @83 → @87
09A	4C 77616C6C	txt "wall"
09F	02 0A000000000000 00	i64 10
0A8	0F 0A 9A000000 9F00 0000	map leaf, size 10: @9A → @9F
0B2	07 12 21800000 7900 0000 90000000 A800 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @79 → @90 → @A8
0C4	BC 6172656E615F62 79746573	txt "arena_bytes"
0D0	02 001D0000000000 00	i64 7424
0D9	0F 0A C4000000 D000 0000	map leaf, size 10: @C4 → @D0
0E3	3C 637075	txt "cpu"
0E7	02 881D0000000000 00	i64 7560
0F0	0F 0A E3000000 E700 0000	map leaf, size 10: @E3 → @E7
0FA	4C 77616C6C	txt "wall"
0FF	02 9C1D0000000000 00	i64 7580
108	0F 0A FA000000 FF00 0000	map leaf, size 10: @FA → @FF
112	07 12 21800000 D900 0000 F0000000 0801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @D9 → @F0 → @108
124	BC 6172656E615F62 79746573	txt "arena_bytes"

Show all 106 nodes

Offset (hex)	Bytes (hex)	Meaning
130	02 90230000000000 00	i64 9104
139	0F 0A 24010000 3001 0000	map leaf, size 10: @124 → @130
143	3C 637075	txt "cpu"
147	02 00230000000000 00	i64 8960
150	0F 0A 43010000 4701 0000	map leaf, size 10: @143 → @147
15A	4C 77616C6C	txt "wall"
15F	02 1E230000000000 00	i64 8990
168	0F 0A 5A010000 5F01 0000	map leaf, size 10: @15A → @15F
172	07 12 21800000 3901 0000 50010000 6801 0000	map branch, size 18, depth 0 (root), slots 0, 5, 15: @139 → @150 → @168
184	7C 65786563757465	txt "execute"
18C	02 00000000000000 00	i64 0
195	0F 0A 84010000 8C01 0000	map leaf, size 10: @184 → @18C
19F	4C 726F7773	txt "rows"
1A4	02 03000000000000 00	i64 3
1AD	0F 0A 9F010000 A401 0000	map leaf, size 10: @19F → @1A4
1B7	4C 706C616E	txt "plan"
1BC	02 90010000000000 00	i64 400
1C5	0F 0A B7010000 BC01 0000	map leaf, size 10: @1B7 → @1BC
1CF	3C 72756E	txt "run"
1D3	0F 0A CF010000 1201 0000	map leaf, size 10: @1CF → @112
1DD	07 12 01840000 AD01 0000 C5010000 D301 0000	map branch, size 18, depth 1, slots 0, 10, 15: @1AD → @1C5 → @1D3
1EF	5C 67726F7570	txt "group"
1F5	02 00000000000000 00	i64 0
1FE	0F 0A EF010000 F501 0000	map leaf, size 10: @1EF → @1F5
208	7C 636F6D70696C65	txt "compile"
210	02 F0000000000000 00	i64 240
219	0F 0A 08020000 1002 0000	map leaf, size 10: @208 → @210
223	AC 706172616D6574 657273	txt "parameters"
22E	0F 0A 23020000 B200 0000	map leaf, size 10: @223 → @B2
238	14 10 737461676573 5F636F6D706C6574 6564	txt "stages_completed"
24A	02 03000000000000 00	i64 3
253	0F 0A 38020000 4A02 0000	map leaf, size 10: @238 → @24A
25D	5C 6F72646572	txt "order"
263	02 00000000000000 00	i64 0
26C	0F 0A 5D020000 6302 0000	map leaf, size 10: @25D → @263
276	07 0E C0000000 5302 0000 6C020000	map branch, size 14, depth 1, slots 6, 7: @253 → @26C
284	EC 6172656E615F63 61706163697479	txt "arena_capacity"
293	02 00004000000000 00	i64 4194304
29C	0F 0A 84020000 9302 0000	map leaf, size 10: @284 → @293
2A6	14 11 627564676574 5F757365645F6279 746573	txt "budget_used_bytes"
2B9	02 D2270000000000 00	i64 10194
2C2	0F 0A A6020000 B902 0000	map leaf, size 10: @2A6 → @2B9
2CC	07 0E 24000000 9C02 0000 C2020000	map branch, size 14, depth 1, slots 2, 5: @29C → @2C2
2DA	FC 6275646765745F 7265667573616C73	txt "budget_refusals"
2EA	02 00000000000000 00	i64 0
2F3	0F 0A DA020000 EA02 0000	map leaf, size 10: @2DA → @2EA
2FD	4C 776F726B	txt "work"
302	02 F2120000000000 00	i64 4850
30B	0F 0A FD020000 0203 0000	map leaf, size 10: @2FD → @302
315	07 0E 88000000 F302 0000 0B030000	map branch, size 14, depth 1, slots 3, 7: @2F3 → @30B
323	FC 6D656D6F72795F 7265667573616C73	txt "memory_refusals"
333	02 00000000000000 00	i64 0
33C	0F 0A 23030000 3303 0000	map leaf, size 10: @323 → @333
346	CC 6275646765745F 6279746573	txt "budget_bytes"
353	02 00823E71020000 00	i64 10489856512
35C	0F 0A 46030000 5303 0000	map leaf, size 10: @346 → @353
366	5C 746F74616C	txt "total"
36C	0F 0A 66030000 7201 0000	map leaf, size 10: @366 → @172
376	14 11 627564676574 5F7065616B5F6279 746573	txt "budget_peak_bytes"
389	02 BB370000000000 00	i64 14267
392	0F 0A 76030000 8903 0000	map leaf, size 10: @376 → @389
39C	07 16 13040000 3C03 0000 5C030000 6C03 0000 92030000	map branch, size 22, depth 1, slots 0, 1, 4, 10: @33C → @35C → @36C → @392
3B2	5C 7265747279	txt "retry"
3B8	02 00000000000000 00	i64 0
3C1	0F 0A B2030000 B803 0000	map leaf, size 10: @3B2 → @3B8
3CB	7C 72657472696573	txt "retries"
3D3	02 00000000000000 00	i64 0
3DC	0F 0A CB030000 D303 0000	map leaf, size 10: @3CB → @3D3
3E6	CC 6D656D6F72795F 6279746573	txt "memory_bytes"
3F3	02 6B170000000000 00	i64 5995
3FC	0F 0A E6030000 F303 0000	map leaf, size 10: @3E6 → @3F3
406	FC 6C6F61645F6465 66696E6974696F6E	txt "load_definition"
416	0F 0A 06040000 5200 0000	map leaf, size 10: @406 → @52
420	07 0E 01100000 FC03 0000 16040000	map branch, size 14, depth 1, slots 0, 12: @3FC → @416
42E	07 36 FBDA0000 9501 0000 DD010000 FE01 0000 19020000 2E02 0000 76020000 CC02 0000 15030000 9C03 0000 C1030000 DC03 0000 20040000	map branch, size 54, depth 0 (root), slots 0, 1, 3, 4, 5, 6, 7, 9, 11, 12, 14, 15: @195 → @1DD → @1FE → @219 → @22E → @276 → @2CC → @315 → @39C → @3C1 → @3DC → @420

Offset (hex)	Bytes (hex)	Meaning
464	2E040000 00000000	root → @42E; previous: none