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parse_expr.h File Reference
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Functions

NodetransformExpr (ParseState *pstate, Node *expr, ParseExprKind exprKind)
 
const char * ParseExprKindName (ParseExprKind exprKind)
 

Variables

bool Transform_null_equals
 

Function Documentation

◆ ParseExprKindName()

const char* ParseExprKindName ( ParseExprKind  exprKind)

Definition at line 3001 of file parse_expr.c.

References EXPR_KIND_ALTER_COL_TRANSFORM, EXPR_KIND_CALL_ARGUMENT, EXPR_KIND_CHECK_CONSTRAINT, EXPR_KIND_COLUMN_DEFAULT, EXPR_KIND_COPY_WHERE, EXPR_KIND_CYCLE_MARK, EXPR_KIND_DISTINCT_ON, EXPR_KIND_DOMAIN_CHECK, EXPR_KIND_EXECUTE_PARAMETER, EXPR_KIND_FILTER, EXPR_KIND_FROM_FUNCTION, EXPR_KIND_FROM_SUBSELECT, EXPR_KIND_FUNCTION_DEFAULT, EXPR_KIND_GENERATED_COLUMN, EXPR_KIND_GROUP_BY, EXPR_KIND_HAVING, EXPR_KIND_INDEX_EXPRESSION, EXPR_KIND_INDEX_PREDICATE, EXPR_KIND_INSERT_TARGET, EXPR_KIND_JOIN_ON, EXPR_KIND_JOIN_USING, EXPR_KIND_LIMIT, EXPR_KIND_NONE, EXPR_KIND_OFFSET, EXPR_KIND_ORDER_BY, EXPR_KIND_OTHER, EXPR_KIND_PARTITION_BOUND, EXPR_KIND_PARTITION_EXPRESSION, EXPR_KIND_POLICY, EXPR_KIND_RETURNING, EXPR_KIND_SELECT_TARGET, EXPR_KIND_STATS_EXPRESSION, EXPR_KIND_TRIGGER_WHEN, EXPR_KIND_UPDATE_SOURCE, EXPR_KIND_UPDATE_TARGET, EXPR_KIND_VALUES, EXPR_KIND_VALUES_SINGLE, EXPR_KIND_WHERE, EXPR_KIND_WINDOW_FRAME_GROUPS, EXPR_KIND_WINDOW_FRAME_RANGE, EXPR_KIND_WINDOW_FRAME_ROWS, EXPR_KIND_WINDOW_ORDER, and EXPR_KIND_WINDOW_PARTITION.

Referenced by check_agglevels_and_constraints(), check_srf_call_placement(), checkTargetlistEntrySQL92(), findTargetlistEntrySQL92(), and transformWindowFuncCall().

3002 {
3003  switch (exprKind)
3004  {
3005  case EXPR_KIND_NONE:
3006  return "invalid expression context";
3007  case EXPR_KIND_OTHER:
3008  return "extension expression";
3009  case EXPR_KIND_JOIN_ON:
3010  return "JOIN/ON";
3011  case EXPR_KIND_JOIN_USING:
3012  return "JOIN/USING";
3014  return "sub-SELECT in FROM";
3016  return "function in FROM";
3017  case EXPR_KIND_WHERE:
3018  return "WHERE";
3019  case EXPR_KIND_POLICY:
3020  return "POLICY";
3021  case EXPR_KIND_HAVING:
3022  return "HAVING";
3023  case EXPR_KIND_FILTER:
3024  return "FILTER";
3026  return "window PARTITION BY";
3028  return "window ORDER BY";
3030  return "window RANGE";
3032  return "window ROWS";
3034  return "window GROUPS";
3036  return "SELECT";
3038  return "INSERT";
3041  return "UPDATE";
3042  case EXPR_KIND_GROUP_BY:
3043  return "GROUP BY";
3044  case EXPR_KIND_ORDER_BY:
3045  return "ORDER BY";
3046  case EXPR_KIND_DISTINCT_ON:
3047  return "DISTINCT ON";
3048  case EXPR_KIND_LIMIT:
3049  return "LIMIT";
3050  case EXPR_KIND_OFFSET:
3051  return "OFFSET";
3052  case EXPR_KIND_RETURNING:
3053  return "RETURNING";
3054  case EXPR_KIND_VALUES:
3056  return "VALUES";
3059  return "CHECK";
3062  return "DEFAULT";
3064  return "index expression";
3066  return "index predicate";
3068  return "statistics expression";
3070  return "USING";
3072  return "EXECUTE";
3074  return "WHEN";
3076  return "partition bound";
3078  return "PARTITION BY";
3080  return "CALL";
3081  case EXPR_KIND_COPY_WHERE:
3082  return "WHERE";
3084  return "GENERATED AS";
3085  case EXPR_KIND_CYCLE_MARK:
3086  return "CYCLE";
3087 
3088  /*
3089  * There is intentionally no default: case here, so that the
3090  * compiler will warn if we add a new ParseExprKind without
3091  * extending this switch. If we do see an unrecognized value at
3092  * runtime, we'll fall through to the "unrecognized" return.
3093  */
3094  }
3095  return "unrecognized expression kind";
3096 }

◆ transformExpr()

Node* transformExpr ( ParseState pstate,
Node expr,
ParseExprKind  exprKind 
)

Definition at line 94 of file parse_expr.c.

References Assert, EXPR_KIND_NONE, ParseState::p_expr_kind, and transformExprRecurse().

Referenced by analyzeCTE(), array_subscript_transform(), cookConstraint(), cookDefault(), DoCopy(), domainAddConstraint(), EvaluateParams(), ExpandIndirectionStar(), findTargetlistEntrySQL99(), hstore_subscript_transform(), interpret_function_parameter_list(), jsonb_subscript_transform(), resolve_unique_index_expr(), transformAlterTableStmt(), transformCallStmt(), transformExpressionList(), transformFrameOffset(), transformFuncCall(), transformGroupingFunc(), transformIndexStmt(), transformJoinUsingClause(), transformLimitClause(), transformOnConflictArbiter(), transformPartitionBoundValue(), transformPartitionSpec(), transformPLAssignStmt(), transformRangeFunction(), transformRangeTableFunc(), transformRangeTableSample(), transformReturnStmt(), transformStatsStmt(), transformTargetEntry(), and transformWhereClause().

95 {
96  Node *result;
97  ParseExprKind sv_expr_kind;
98 
99  /* Save and restore identity of expression type we're parsing */
100  Assert(exprKind != EXPR_KIND_NONE);
101  sv_expr_kind = pstate->p_expr_kind;
102  pstate->p_expr_kind = exprKind;
103 
104  result = transformExprRecurse(pstate, expr);
105 
106  pstate->p_expr_kind = sv_expr_kind;
107 
108  return result;
109 }
static Node * transformExprRecurse(ParseState *pstate, Node *expr)
Definition: parse_expr.c:112
Definition: nodes.h:536
ParseExprKind
Definition: parse_node.h:38
ParseExprKind p_expr_kind
Definition: parse_node.h:196
#define Assert(condition)
Definition: c.h:804

Variable Documentation

◆ Transform_null_equals

bool Transform_null_equals

Definition at line 42 of file parse_expr.c.

Referenced by transformAExprOp().