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Commit36f36ce

Browse files
author
Nikita Glukhov
committed
Add JSON_VALUE, JSON_EXISTS, JSON_QUERY
1 parentc83cde3 commit36f36ce

28 files changed

+3252
-12
lines changed

‎contrib/pg_stat_statements/pg_stat_statements.c

Lines changed: 21 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -3134,6 +3134,27 @@ JumbleExpr(pgssJumbleState *jstate, Node *node)
31343134
APP_JUMB(pred->value_type);
31353135
}
31363136
break;
3137+
caseT_JsonExpr:
3138+
{
3139+
JsonExpr*jexpr= (JsonExpr*)node;
3140+
3141+
APP_JUMB(jexpr->op);
3142+
JumbleExpr(jstate,jexpr->raw_expr);
3143+
JumbleExpr(jstate, (Node*)jexpr->path_spec);
3144+
foreach(temp,jexpr->passing_names)
3145+
{
3146+
APP_JUMB_STRING(castNode(Value,temp)->val.str);
3147+
}
3148+
JumbleExpr(jstate, (Node*)jexpr->passing_values);
3149+
if (jexpr->on_empty)
3150+
{
3151+
APP_JUMB(jexpr->on_empty->btype);
3152+
JumbleExpr(jstate,jexpr->on_empty->default_expr);
3153+
}
3154+
APP_JUMB(jexpr->on_error->btype);
3155+
JumbleExpr(jstate,jexpr->on_error->default_expr);
3156+
}
3157+
break;
31373158
caseT_List:
31383159
foreach(temp, (List*)node)
31393160
{

‎src/backend/executor/execExpr.c

Lines changed: 87 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -46,6 +46,7 @@
4646
#include"utils/array.h"
4747
#include"utils/builtins.h"
4848
#include"utils/datum.h"
49+
#include"utils/jsonpath.h"
4950
#include"utils/lsyscache.h"
5051
#include"utils/typcache.h"
5152

@@ -2206,6 +2207,92 @@ ExecInitExprRec(Expr *node, ExprState *state,
22062207
break;
22072208
}
22082209

2210+
caseT_JsonExpr:
2211+
{
2212+
JsonExpr*jexpr=castNode(JsonExpr,node);
2213+
ListCell*argexprlc;
2214+
ListCell*argnamelc;
2215+
2216+
scratch.opcode=EEOP_JSONEXPR;
2217+
scratch.d.jsonexpr.jsexpr=jexpr;
2218+
2219+
scratch.d.jsonexpr.raw_expr=
2220+
palloc(sizeof(*scratch.d.jsonexpr.raw_expr));
2221+
2222+
ExecInitExprRec((Expr*)jexpr->raw_expr,state,
2223+
&scratch.d.jsonexpr.raw_expr->value,
2224+
&scratch.d.jsonexpr.raw_expr->isnull);
2225+
2226+
scratch.d.jsonexpr.formatted_expr=
2227+
ExecInitExpr((Expr*)jexpr->formatted_expr,state->parent);
2228+
2229+
scratch.d.jsonexpr.result_expr=jexpr->result_coercion
2230+
?ExecInitExpr((Expr*)jexpr->result_coercion->expr,
2231+
state->parent)
2232+
:NULL;
2233+
2234+
scratch.d.jsonexpr.default_on_empty= !jexpr->on_empty ?NULL :
2235+
ExecInitExpr((Expr*)jexpr->on_empty->default_expr,
2236+
state->parent);
2237+
2238+
scratch.d.jsonexpr.default_on_error=
2239+
ExecInitExpr((Expr*)jexpr->on_error->default_expr,
2240+
state->parent);
2241+
2242+
if (jexpr->omit_quotes||
2243+
(jexpr->result_coercion&&jexpr->result_coercion->via_io))
2244+
{
2245+
Oidtypinput;
2246+
2247+
/* lookup the result type's input function */
2248+
getTypeInputInfo(jexpr->returning->typid,&typinput,
2249+
&scratch.d.jsonexpr.input.typioparam);
2250+
fmgr_info(typinput,&scratch.d.jsonexpr.input.func);
2251+
}
2252+
2253+
scratch.d.jsonexpr.args=NIL;
2254+
2255+
forboth(argexprlc,jexpr->passing_values,
2256+
argnamelc,jexpr->passing_names)
2257+
{
2258+
Expr*argexpr= (Expr*)lfirst(argexprlc);
2259+
Value*argname= (Value*)lfirst(argnamelc);
2260+
JsonPathVariableEvalContext*var=palloc(sizeof(*var));
2261+
2262+
var->name=pstrdup(argname->val.str);
2263+
var->typid=exprType((Node*)argexpr);
2264+
var->typmod=exprTypmod((Node*)argexpr);
2265+
var->estate=ExecInitExpr(argexpr,state->parent);
2266+
var->econtext=NULL;
2267+
var->evaluated= false;
2268+
var->value= (Datum)0;
2269+
var->isnull= true;
2270+
2271+
scratch.d.jsonexpr.args=
2272+
lappend(scratch.d.jsonexpr.args,var);
2273+
}
2274+
2275+
if (jexpr->coercions)
2276+
{
2277+
JsonCoercion**coercion;
2278+
structJsonCoercionState*cstate;
2279+
2280+
for (cstate=&scratch.d.jsonexpr.coercions.null,
2281+
coercion=&jexpr->coercions->null;
2282+
coercion <=&jexpr->coercions->composite;
2283+
coercion++,cstate++)
2284+
{
2285+
cstate->coercion=*coercion;
2286+
cstate->estate=*coercion ?
2287+
ExecInitExpr((Expr*)(*coercion)->expr,
2288+
state->parent) :NULL;
2289+
}
2290+
}
2291+
2292+
ExprEvalPushStep(state,&scratch);
2293+
break;
2294+
}
2295+
22092296
default:
22102297
elog(ERROR,"unrecognized node type: %d",
22112298
(int)nodeTag(node));

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