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| author | Daniel Gustafsson <dgustafsson@postgresql.org> | 2025-03-11 12:02:42 +0100 |
|---|---|---|
| committer | Daniel Gustafsson <dgustafsson@postgresql.org> | 2025-03-11 12:02:42 +0100 |
| commit | d35d32d7112bc632c6a305e9dffdec0082bbdf00 (patch) | |
| tree | 0e8b4c3c6b8603977cc68e59bc372764e7b489d8 /src/include/executor | |
| parent | 8dd7c7cd0a2605d5301266a6b67a569d6a305106 (diff) | |
| download | postgresql-d35d32d7112bc632c6a305e9dffdec0082bbdf00.tar.gz postgresql-d35d32d7112bc632c6a305e9dffdec0082bbdf00.zip | |
Add special case fast-paths for strict functions
Many STRICT function calls will have one or two arguments, in which
case we can speed up checking for NULL input by avoiding setting up
a loop over the arguments. This adds EEOP_FUNCEXPR_STRICT_1 and the
corresponding EEOP_FUNCEXPR_STRICT_2 for functions with one and two
arguments respectively.
Author: Andres Freund <andres@anarazel.de>
Co-authored-by: Daniel Gustafsson <daniel@yesql.se>
Reviewed-by: Andreas Karlsson <andreas@proxel.se>
Discussion: https://postgr.es/m/415721CE-7D2E-4B74-B5D9-1950083BA03E@yesql.se
Discussion: https://postgr.es/m/20191023163849.sosqbfs5yenocez3@alap3.anarazel.de
Diffstat (limited to 'src/include/executor')
| -rw-r--r-- | src/include/executor/execExpr.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/include/executor/execExpr.h b/src/include/executor/execExpr.h index fabdf145a8e..75366203706 100644 --- a/src/include/executor/execExpr.h +++ b/src/include/executor/execExpr.h @@ -116,11 +116,13 @@ typedef enum ExprEvalOp /* * Evaluate function call (including OpExprs etc). For speed, we - * distinguish in the opcode whether the function is strict and/or - * requires usage stats tracking. + * distinguish in the opcode whether the function is strict with 1, 2, or + * more arguments and/or requires usage stats tracking. */ EEOP_FUNCEXPR, EEOP_FUNCEXPR_STRICT, + EEOP_FUNCEXPR_STRICT_1, + EEOP_FUNCEXPR_STRICT_2, EEOP_FUNCEXPR_FUSAGE, EEOP_FUNCEXPR_STRICT_FUSAGE, @@ -276,6 +278,7 @@ typedef enum ExprEvalOp EEOP_AGG_STRICT_DESERIALIZE, EEOP_AGG_DESERIALIZE, EEOP_AGG_STRICT_INPUT_CHECK_ARGS, + EEOP_AGG_STRICT_INPUT_CHECK_ARGS_1, EEOP_AGG_STRICT_INPUT_CHECK_NULLS, EEOP_AGG_PLAIN_PERGROUP_NULLCHECK, EEOP_AGG_PLAIN_TRANS_INIT_STRICT_BYVAL, |