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Fix minor thinko in convertToJsonb().

The amount of space to reserve for the value's varlena header isVARHDRSZ, not sizeof(VARHDRSZ). The latter coding accidentallyfailed to fail because of the way the VARHDRSZ macro is currentlydefined; but if we ever change it to return size_t (as one mightreasonably expect it to do), convertToJsonb() would have failed.Spotted by Mark Dilger.

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src/backend/utils/adt
- jsonb_util.c

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`‎src/backend/utils/adt/jsonb_util.c`

Lines changed: 1 addition & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -1377,7 +1377,7 @@ convertToJsonb(JsonbValue *val)`
`1377`	`1377`	`initStringInfo(&buffer);`
`1378`	`1378`
`1379`	`1379`	`/* Make room for the varlena header */`
`1380`		`-reserveFromBuffer(&buffer,sizeof(VARHDRSZ));`
	`1380`	`+reserveFromBuffer(&buffer,VARHDRSZ);`
`1381`	`1381`
`1382`	`1382`	`convertJsonbValue(&buffer,&jentry,val,0);`
`1383`	`1383`

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Commit49b60a4

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`‎src/backend/utils/adt/jsonb_util.c`

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