diff options
Diffstat (limited to 'src/backend/access')
| -rw-r--r-- | src/backend/access/gin/ginpostinglist.c | 14 | ||||
| -rw-r--r-- | src/backend/access/heap/heapam.c | 2 | ||||
| -rw-r--r-- | src/backend/access/nbtree/README | 2 | ||||
| -rw-r--r-- | src/backend/access/transam/xact.c | 4 |
4 files changed, 11 insertions, 11 deletions
diff --git a/src/backend/access/gin/ginpostinglist.c b/src/backend/access/gin/ginpostinglist.c index 6337b1a8fce..e6d7c1a0788 100644 --- a/src/backend/access/gin/ginpostinglist.c +++ b/src/backend/access/gin/ginpostinglist.c @@ -23,7 +23,7 @@ /* * For encoding purposes, item pointers are represented as 64-bit unsigned * integers. The lowest 11 bits represent the offset number, and the next - * lowest 32 bits are the block number. That leaves 17 bits unused, ie. + * lowest 32 bits are the block number. That leaves 17 bits unused, i.e. * only 43 low bits are used. * * These 43-bit integers are encoded using varbyte encoding. In each byte, @@ -51,16 +51,16 @@ * Removing number is actually replacement of two numbers with their sum. We * have to prove that varbyte encoding of a sum can't be longer than varbyte * encoding of its summands. Sum of two numbers is at most one bit wider than - * than the larger of the summands. Widening a number by one bit enlarges its - * length in varbyte encoding by at most one byte. Therefore, varbyte encoding - * of sum is at most one byte longer than varbyte encoding of larger summand. - * Lesser summand is at least one byte, so the sum cannot take more space than - * the summands, Q.E.D. + * the larger of the summands. Widening a number by one bit enlarges its length + * in varbyte encoding by at most one byte. Therefore, varbyte encoding of sum + * is at most one byte longer than varbyte encoding of larger summand. Lesser + * summand is at least one byte, so the sum cannot take more space than the + * summands, Q.E.D. * * This property greatly simplifies VACUUM, which can assume that posting * lists always fit on the same page after vacuuming. Note that even though * that holds for removing items from a posting list, you must also be - * careful to not cause expansion e.g when merging uncompressed items on the + * careful to not cause expansion e.g. when merging uncompressed items on the * page into the compressed lists, when vacuuming. */ diff --git a/src/backend/access/heap/heapam.c b/src/backend/access/heap/heapam.c index f0c2394e600..c30a5b3cd1d 100644 --- a/src/backend/access/heap/heapam.c +++ b/src/backend/access/heap/heapam.c @@ -7289,7 +7289,7 @@ ExtractReplicaIdentity(Relation relation, HeapTuple tp, bool key_changed, bool * { /* * The OID column can appear in an index definition, but that's - * OK, becuse we always copy the OID if present (see below). Other + * OK, because we always copy the OID if present (see below). Other * system columns may not. */ if (attno == ObjectIdAttributeNumber) diff --git a/src/backend/access/nbtree/README b/src/backend/access/nbtree/README index 5c0bc794848..7055c242d20 100644 --- a/src/backend/access/nbtree/README +++ b/src/backend/access/nbtree/README @@ -470,7 +470,7 @@ not be seen under normal circumstances; only if insertion to the parent has failed for some reason. We flag the left page, even though it's the right page that's missing the -downlink, beacuse it's more convenient to know already when following the +downlink, because it's more convenient to know already when following the right-link from the left page to the right page that it will need to have its downlink inserted to the parent. diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c index a8f78d63762..f6009e07473 100644 --- a/src/backend/access/transam/xact.c +++ b/src/backend/access/transam/xact.c @@ -2005,7 +2005,7 @@ CommitTransaction(void) if (!is_parallel_worker) { /* - * We need to mark our XIDs as commited in pg_clog. This is where we + * We need to mark our XIDs as committed in pg_clog. This is where we * durably commit. */ latestXid = RecordTransactionCommit(); @@ -2764,7 +2764,7 @@ CommitTransactionCommand(void) /* * Here we are in the middle of a transaction block but one of the * commands caused an abort so we do nothing but remain in the - * abort state. Eventually we will get a ROLLBACK comand. + * abort state. Eventually we will get a ROLLBACK command. */ case TBLOCK_ABORT: case TBLOCK_SUBABORT: |