diff options
Diffstat (limited to 'src/include/executor/execExpr.h')
| -rw-r--r-- | src/include/executor/execExpr.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/include/executor/execExpr.h b/src/include/executor/execExpr.h index 845f3422dea..eec0aa699e5 100644 --- a/src/include/executor/execExpr.h +++ b/src/include/executor/execExpr.h @@ -235,6 +235,13 @@ typedef enum ExprEvalOp /* evaluate a single domain CHECK constraint */ EEOP_DOMAIN_CHECK, + /* evaluation steps for hashing */ + EEOP_HASHDATUM_SET_INITVAL, + EEOP_HASHDATUM_FIRST, + EEOP_HASHDATUM_FIRST_STRICT, + EEOP_HASHDATUM_NEXT32, + EEOP_HASHDATUM_NEXT32_STRICT, + /* evaluate assorted special-purpose expression types */ EEOP_CONVERT_ROWTYPE, EEOP_SCALARARRAYOP, @@ -558,6 +565,23 @@ typedef struct ExprEvalStep ErrorSaveContext *escontext; } domaincheck; + /* for EEOP_HASH_SET_INITVAL */ + struct + { + Datum init_value; + + } hashdatum_initvalue; + + /* for EEOP_HASHDATUM_(FIRST|NEXT32)[_STRICT] */ + struct + { + FmgrInfo *finfo; /* function's lookup data */ + FunctionCallInfo fcinfo_data; /* arguments etc */ + /* faster to access without additional indirection: */ + PGFunction fn_addr; /* actual call address */ + int jumpdone; /* jump here on null */ + } hashdatum; + /* for EEOP_CONVERT_ROWTYPE */ struct { |