Fix some typos in comment
This commit is contained in:
parent
9779bda86c
commit
440c8d1bbc
|
@ -119,7 +119,7 @@ typedef HashScanOpaqueData *HashScanOpaque;
|
||||||
#define HASH_VERSION 2 /* 2 signifies only hash key value is stored */
|
#define HASH_VERSION 2 /* 2 signifies only hash key value is stored */
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Spares[] holds the number of overflow pages currently allocated at or
|
* spares[] holds the number of overflow pages currently allocated at or
|
||||||
* before a certain splitpoint. For example, if spares[3] = 7 then there are
|
* before a certain splitpoint. For example, if spares[3] = 7 then there are
|
||||||
* 7 ovflpages before splitpoint 3 (compare BUCKET_TO_BLKNO macro). The
|
* 7 ovflpages before splitpoint 3 (compare BUCKET_TO_BLKNO macro). The
|
||||||
* value in spares[ovflpoint] increases as overflow pages are added at the
|
* value in spares[ovflpoint] increases as overflow pages are added at the
|
||||||
|
@ -129,14 +129,14 @@ typedef HashScanOpaqueData *HashScanOpaque;
|
||||||
*
|
*
|
||||||
* ovflpages that have been recycled for reuse can be found by looking at
|
* ovflpages that have been recycled for reuse can be found by looking at
|
||||||
* bitmaps that are stored within ovflpages dedicated for the purpose.
|
* bitmaps that are stored within ovflpages dedicated for the purpose.
|
||||||
* The blknos of these bitmap pages are kept in bitmaps[]; nmaps is the
|
* The blknos of these bitmap pages are kept in mapp[]; nmaps is the
|
||||||
* number of currently existing bitmaps.
|
* number of currently existing bitmaps.
|
||||||
*
|
*
|
||||||
* The limitation on the size of spares[] comes from the fact that there's
|
* The limitation on the size of spares[] comes from the fact that there's
|
||||||
* no point in having more than 2^32 buckets with only uint32 hashcodes.
|
* no point in having more than 2^32 buckets with only uint32 hashcodes.
|
||||||
* There is no particular upper limit on the size of mapp[], other than
|
* There is no particular upper limit on the size of mapp[], other than
|
||||||
* needing to fit into the metapage. (With 8K block size, 128 bitmaps
|
* needing to fit into the metapage. (With 8K block size, 128 bitmaps
|
||||||
* limit us to 64 Gb of overflow space...)
|
* limit us to 64 GB of overflow space...)
|
||||||
*/
|
*/
|
||||||
#define HASH_MAX_SPLITPOINTS 32
|
#define HASH_MAX_SPLITPOINTS 32
|
||||||
#define HASH_MAX_BITMAPS 128
|
#define HASH_MAX_BITMAPS 128
|
||||||
|
|
Loading…
Reference in New Issue