Fix jsonPathStatsGetNextSubpathStats()

Nikita Glukhov · Nikita Glukhov · commit eacc7a4c2ce2 · 2022-03-11T00:52:06.000+03:00
diff --git a/src/backend/utils/adt/jsonb_selfuncs.c b/src/backend/utils/adt/jsonb_selfuncs.c
@@ -570,7 +570,7 @@ jsonPathStatsGetNextSubpathStats(JsonPathStats stats, JsonPathStats *pkeystats,
 			else if (*c == '.')
 			{
 				/* find end of '."key"' */
-				const char *pathend = path + pathlen;
+				const char *pathend = path + pathlen - 1;
 
 				if (++c >= pathend || *c != '"')
 					break;		/* invalid path */
@@ -591,7 +591,7 @@ jsonPathStatsGetNextSubpathStats(JsonPathStats stats, JsonPathStats *pkeystats,
 		}
 
 		/* Init path stats if needed */
-		if (!stats->data)
+		if (!keystats->data)
 		{
 			keystats->data = stats->data;
 			keystats->datum = pathdatum;

Original file line number	Diff line number	Diff line change
`@@ -570,7 +570,7 @@ jsonPathStatsGetNextSubpathStats(JsonPathStats stats, JsonPathStats *pkeystats,`
`570`	`570`	`else if (*c == '.')`
`571`	`571`	`{`
`572`	`572`	`/* find end of '."key"' */`
`573`		`- const char *pathend = path + pathlen;`
	`573`	`+ const char *pathend = path + pathlen - 1;`
`574`	`574`
`575`	`575`	`if (++c >= pathend \|\| *c != '"')`
`576`	`576`	`break; /* invalid path */`
`@@ -591,7 +591,7 @@ jsonPathStatsGetNextSubpathStats(JsonPathStats stats, JsonPathStats *pkeystats,`
`591`	`591`	`}`
`592`	`592`
`593`	`593`	`/* Init path stats if needed */`
`594`		`- if (!stats->data)`
	`594`	`+ if (!keystats->data)`
`595`	`595`	`{`
`596`	`596`	`keystats->data = stats->data;`
`597`	`597`	`keystats->datum = pathdatum;`