Instrument usage stack v16#68

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lfittl wants to merge 10 commits into

instrument-usage-stack-v16

Commits on Apr 7, 2026

instrumentation: Allocate queryDesc->totaltime in ExecutorStart if needed
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instrumentation: Move ExecProcNodeInstr to allow inlining
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instrumentation: Use Instrumentation instead of manual buffer tracking
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instrumentation: Replace direct changes of pgBufferUsage/pgWalUsage with INSTR_* macros
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instrumentation: Add additional regression tests covering buffer usage
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Optimize measuring WAL/buffer usage through stack-based instrumentation
lfittl
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instrumentation: Use Instrumentation struct for parallel workers
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instrumentation: Optimize ExecProcNodeInstr instructions by inlining
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Index scans: Show table buffer accesses separately in EXPLAIN ANALYZE
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Add test_session_buffer_usage test module
lfittl
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