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Commit41d2c08

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Make hstore_to_jsonb_loose match hstore_to_json_loose on what's a number.

Commite09996f removed some ad-hoc code in hstore_to_json_loosethat determined whether an hstore value string looked like a number,in favor of calling the JSON parser's is-it-a-number code. However,it neglected the fact that the exact same code appeared inhstore_to_jsonb_loose.This is not a bug, exactly, because the requirements on the two functionsare not the same: hstore_to_json_loose must accept only syntactically legalJSON numbers as numbers, or it will produce invalid JSON output, as per bug#12070 which spawned the prior commit. But hstore_to_jsonb_loose couldaccept anything that numeric_in will eat, other than Inf and NaN.Nonetheless it seems surprising and arbitrary that the two functions don'tuse the same rules for what is a number versus what is a string; especiallysince they did use the same rules before the aforesaid commit. For onething, that means that doing hstore_to_json_loose and then casting to jsonbcan produce results different from doing just hstore_to_jsonb_loose.Hence, change hstore_to_jsonb_loose's logic to match hstore_to_json_loose,ie, hstore values are treated as numbers when they match the JSON syntaxfor numbers.No back-patch, since this is more in the nature of a definitional changethan a bug fix.

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lines changed

contrib/hstore
- hstore_io.c

1 file changed

-42

lines changed

`‎contrib/hstore/hstore_io.c`

Lines changed: 1 addition & 42 deletions

Original file line number	Diff line number	Diff line change
`@@ -1387,7 +1387,6 @@ hstore_to_jsonb_loose(PG_FUNCTION_ARGS)`
`1387`	`1387`	`JsonbParseState*state=NULL;`
`1388`	`1388`	`JsonbValue*res;`
`1389`	`1389`	`StringInfoDatatmp;`
`1390`		`-boolis_number;`
`1391`	`1390`
`1392`	`1391`	`initStringInfo(&tmp);`
`1393`	`1392`
`@@ -1423,50 +1422,10 @@ hstore_to_jsonb_loose(PG_FUNCTION_ARGS)`
`1423`	`1422`	`}`
`1424`	`1423`	`else`
`1425`	`1424`	`{`
`1426`		`-is_number= false;`
`1427`	`1425`	`resetStringInfo(&tmp);`
`1428`		`-`
`1429`	`1426`	`appendBinaryStringInfo(&tmp,HSTORE_VAL(entries,base,i),`
`1430`	`1427`	`HSTORE_VALLEN(entries,i));`
`1431`		`-`
`1432`		`-/*`
`1433`		`- * don't treat something with a leading zero followed by another`
`1434`		`- * digit as numeric - could be a zip code or similar`
`1435`		`- */`
`1436`		`-if (tmp.len>0&&`
`1437`		`-!(tmp.data[0]=='0'&&`
`1438`		`-isdigit((unsignedchar)tmp.data[1]))&&`
`1439`		`-strspn(tmp.data,"+-0123456789Ee.")==tmp.len)`
`1440`		`-{`
`1441`		`-/*`
`1442`		`- * might be a number. See if we can input it as a numeric`
`1443`		`- * value. Ignore any actual parsed value.`
`1444`		`- */`
`1445`		`-char*endptr="junk";`
`1446`		`-longlval;`
`1447`		`-`
`1448`		`-lval=strtol(tmp.data,&endptr,10);`
`1449`		`-(void)lval;`
`1450`		`-if (*endptr=='\0')`
`1451`		`-{`
`1452`		`-/*`
`1453`		`- * strol man page says this means the whole string is`
`1454`		`- * valid`
`1455`		`- */`
`1456`		`-is_number= true;`
`1457`		`-}`
`1458`		`-else`
`1459`		`-{`
`1460`		`-/* not an int - try a double */`
`1461`		`-doubledval;`
`1462`		`-`
`1463`		`-dval=strtod(tmp.data,&endptr);`
`1464`		`-(void)dval;`
`1465`		`-if (*endptr=='\0')`
`1466`		`-is_number= true;`
`1467`		`-}`
`1468`		`-}`
`1469`		`-if (is_number)`
	`1428`	`+if (IsValidJsonNumber(tmp.data,tmp.len))`
`1470`	`1429`	`{`
`1471`	`1430`	`val.type=jbvNumeric;`
`1472`	`1431`	`val.val.numeric=DatumGetNumeric(`

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Commit41d2c08

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`‎contrib/hstore/hstore_io.c`

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