diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/executor/execExprInterp.c | 94 |
1 files changed, 35 insertions, 59 deletions
diff --git a/src/backend/executor/execExprInterp.c b/src/backend/executor/execExprInterp.c index 293bfb61c36..e876160a0e7 100644 --- a/src/backend/executor/execExprInterp.c +++ b/src/backend/executor/execExprInterp.c @@ -155,11 +155,11 @@ static void ExecEvalRowNullInt(ExprState *state, ExprEvalStep *op, static Datum ExecJustInnerVar(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustOuterVar(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustScanVar(ExprState *state, ExprContext *econtext, bool *isnull); -static Datum ExecJustConst(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustAssignInnerVar(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustAssignOuterVar(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustAssignScanVar(ExprState *state, ExprContext *econtext, bool *isnull); static Datum ExecJustApplyFuncToCase(ExprState *state, ExprContext *econtext, bool *isnull); +static Datum ExecJustConst(ExprState *state, ExprContext *econtext, bool *isnull); /* @@ -1966,13 +1966,12 @@ ShutdownTupleDescRef(Datum arg) * Fast-path functions, for very simple expressions */ -/* Simple reference to inner Var */ -static Datum -ExecJustInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) +/* implementation of ExecJust(Inner|Outer|Scan)Var */ +static pg_attribute_always_inline Datum +ExecJustVarImpl(ExprState *state, TupleTableSlot *slot, bool *isnull) { ExprEvalStep *op = &state->steps[1]; int attnum = op->d.var.attnum + 1; - TupleTableSlot *slot = econtext->ecxt_innertuple; CheckOpSlotCompatibility(&state->steps[0], slot); @@ -1984,52 +1983,34 @@ ExecJustInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) return slot_getattr(slot, attnum, isnull); } -/* Simple reference to outer Var */ +/* Simple reference to inner Var */ static Datum -ExecJustOuterVar(ExprState *state, ExprContext *econtext, bool *isnull) +ExecJustInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) { - ExprEvalStep *op = &state->steps[1]; - int attnum = op->d.var.attnum + 1; - TupleTableSlot *slot = econtext->ecxt_outertuple; - - CheckOpSlotCompatibility(&state->steps[0], slot); - - /* See comments in ExecJustInnerVar */ - return slot_getattr(slot, attnum, isnull); + return ExecJustVarImpl(state, econtext->ecxt_innertuple, isnull); } -/* Simple reference to scan Var */ +/* Simple reference to outer Var */ static Datum -ExecJustScanVar(ExprState *state, ExprContext *econtext, bool *isnull) +ExecJustOuterVar(ExprState *state, ExprContext *econtext, bool *isnull) { - ExprEvalStep *op = &state->steps[1]; - int attnum = op->d.var.attnum + 1; - TupleTableSlot *slot = econtext->ecxt_scantuple; - - CheckOpSlotCompatibility(&state->steps[0], slot); - - /* See comments in ExecJustInnerVar */ - return slot_getattr(slot, attnum, isnull); + return ExecJustVarImpl(state, econtext->ecxt_outertuple, isnull); } -/* Simple Const expression */ +/* Simple reference to scan Var */ static Datum -ExecJustConst(ExprState *state, ExprContext *econtext, bool *isnull) +ExecJustScanVar(ExprState *state, ExprContext *econtext, bool *isnull) { - ExprEvalStep *op = &state->steps[0]; - - *isnull = op->d.constval.isnull; - return op->d.constval.value; + return ExecJustVarImpl(state, econtext->ecxt_scantuple, isnull); } -/* Evaluate inner Var and assign to appropriate column of result tuple */ -static Datum -ExecJustAssignInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) +/* implementation of ExecJustAssign(Inner|Outer|Scan)Var */ +static pg_attribute_always_inline Datum +ExecJustAssignVarImpl(ExprState *state, TupleTableSlot *inslot, bool *isnull) { ExprEvalStep *op = &state->steps[1]; int attnum = op->d.assign_var.attnum + 1; int resultnum = op->d.assign_var.resultnum; - TupleTableSlot *inslot = econtext->ecxt_innertuple; TupleTableSlot *outslot = state->resultslot; CheckOpSlotCompatibility(&state->steps[0], inslot); @@ -2047,40 +2028,25 @@ ExecJustAssignInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) return 0; } +/* Evaluate inner Var and assign to appropriate column of result tuple */ +static Datum +ExecJustAssignInnerVar(ExprState *state, ExprContext *econtext, bool *isnull) +{ + return ExecJustAssignVarImpl(state, econtext->ecxt_innertuple, isnull); +} + /* Evaluate outer Var and assign to appropriate column of result tuple */ static Datum ExecJustAssignOuterVar(ExprState *state, ExprContext *econtext, bool *isnull) { - ExprEvalStep *op = &state->steps[1]; - int attnum = op->d.assign_var.attnum + 1; - int resultnum = op->d.assign_var.resultnum; - TupleTableSlot *inslot = econtext->ecxt_outertuple; - TupleTableSlot *outslot = state->resultslot; - - CheckOpSlotCompatibility(&state->steps[0], inslot); - - /* See comments in ExecJustAssignInnerVar */ - outslot->tts_values[resultnum] = - slot_getattr(inslot, attnum, &outslot->tts_isnull[resultnum]); - return 0; + return ExecJustAssignVarImpl(state, econtext->ecxt_outertuple, isnull); } /* Evaluate scan Var and assign to appropriate column of result tuple */ static Datum ExecJustAssignScanVar(ExprState *state, ExprContext *econtext, bool *isnull) { - ExprEvalStep *op = &state->steps[1]; - int attnum = op->d.assign_var.attnum + 1; - int resultnum = op->d.assign_var.resultnum; - TupleTableSlot *inslot = econtext->ecxt_scantuple; - TupleTableSlot *outslot = state->resultslot; - - CheckOpSlotCompatibility(&state->steps[0], inslot); - - /* See comments in ExecJustAssignInnerVar */ - outslot->tts_values[resultnum] = - slot_getattr(inslot, attnum, &outslot->tts_isnull[resultnum]); - return 0; + return ExecJustAssignVarImpl(state, econtext->ecxt_scantuple, isnull); } /* Evaluate CASE_TESTVAL and apply a strict function to it */ @@ -2120,6 +2086,16 @@ ExecJustApplyFuncToCase(ExprState *state, ExprContext *econtext, bool *isnull) return d; } +/* Simple Const expression */ +static Datum +ExecJustConst(ExprState *state, ExprContext *econtext, bool *isnull) +{ + ExprEvalStep *op = &state->steps[0]; + + *isnull = op->d.constval.isnull; + return op->d.constval.value; +} + #if defined(EEO_USE_COMPUTED_GOTO) /* * Comparator used when building address->opcode lookup table for |