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Commit5184f11

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Fix bad formula in previous commit.

Commitd5406de used a slightlynovel, and wrong, approach to compute the length of the lasttoast chunk. It worked fine unless the last chunk happened tohave the largest possible size.

1 parentd5406de commit5184f11Copy full SHA for 5184f11

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src/backend/access/common
- detoast.c

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`‎src/backend/access/common/detoast.c`

Lines changed: 2 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -443,7 +443,7 @@ toast_fetch_datum(struct varlena *attr)`
`443`	`443`	`toast_pointer.va_valueid,`
`444`	`444`	`RelationGetRelationName(toastrel))));`
`445`	`445`	`expected_size=curchunk<totalchunks-1 ?TOAST_MAX_CHUNK_SIZE`
`446`		`-:attrsize%TOAST_MAX_CHUNK_SIZE;`
	`446`	`+:attrsize- ((totalchunks-1)*TOAST_MAX_CHUNK_SIZE);`
`447`	`447`	`if (chunksize!=expected_size)`
`448`	`448`	`ereport(ERROR,`
`449`	`449`	`(errcode(ERRCODE_DATA_CORRUPTED),`
`@@ -676,7 +676,7 @@ toast_fetch_datum_slice(struct varlena *attr, int32 sliceoffset,`
`676`	`676`	`toast_pointer.va_valueid,`
`677`	`677`	`RelationGetRelationName(toastrel))));`
`678`	`678`	`expected_size=curchunk<totalchunks-1 ?TOAST_MAX_CHUNK_SIZE`
`679`		`-:attrsize%TOAST_MAX_CHUNK_SIZE;`
	`679`	`+:attrsize- ((totalchunks-1)*TOAST_MAX_CHUNK_SIZE);`
`680`	`680`	`if (chunksize!=expected_size)`
`681`	`681`	`ereport(ERROR,`
`682`	`682`	`(errcode(ERRCODE_DATA_CORRUPTED),`

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Commit5184f11

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`‎src/backend/access/common/detoast.c`

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