diff options
Diffstat (limited to 'src/include/executor/execExpr.h')
| -rw-r--r-- | src/include/executor/execExpr.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/src/include/executor/execExpr.h b/src/include/executor/execExpr.h index 5bbb63a9d80..080252fad60 100644 --- a/src/include/executor/execExpr.h +++ b/src/include/executor/execExpr.h @@ -16,7 +16,8 @@ #include "nodes/execnodes.h" -/* forward reference to avoid circularity */ +/* forward references to avoid circularity */ +struct ExprEvalStep; struct ArrayRefState; /* Bits in ExprState->flags (see also execnodes.h for public flag bits): */ @@ -25,6 +26,11 @@ struct ArrayRefState; /* jump-threading is in use */ #define EEO_FLAG_DIRECT_THREADED (1 << 2) +/* Typical API for out-of-line evaluation subroutines */ +typedef void (*ExecEvalSubroutine) (ExprState *state, + struct ExprEvalStep *op, + ExprContext *econtext); + /* * Discriminator for ExprEvalSteps. * @@ -131,6 +137,7 @@ typedef enum ExprEvalOp /* evaluate PARAM_EXEC/EXTERN parameters */ EEOP_PARAM_EXEC, EEOP_PARAM_EXTERN, + EEOP_PARAM_CALLBACK, /* return CaseTestExpr value */ EEOP_CASE_TESTVAL, @@ -331,6 +338,15 @@ typedef struct ExprEvalStep Oid paramtype; /* OID of parameter's datatype */ } param; + /* for EEOP_PARAM_CALLBACK */ + struct + { + ExecEvalSubroutine paramfunc; /* add-on evaluation subroutine */ + void *paramarg; /* private data for same */ + int paramid; /* numeric ID for parameter */ + Oid paramtype; /* OID of parameter's datatype */ + } cparam; + /* for EEOP_CASE_TESTVAL/DOMAIN_TESTVAL */ struct { @@ -598,8 +614,11 @@ typedef struct ArrayRefState } ArrayRefState; -extern void ExecReadyInterpretedExpr(ExprState *state); +/* functions in execExpr.c */ +extern void ExprEvalPushStep(ExprState *es, const ExprEvalStep *s); +/* functions in execExprInterp.c */ +extern void ExecReadyInterpretedExpr(ExprState *state); extern ExprEvalOp ExecEvalStepOp(ExprState *state, ExprEvalStep *op); /* |