Fix some typos (#10287)

I found these using cspell. It's much more eager than the codespell we
run in CI now, so it complains about 718 different words. Most of these
can be mechanically pulled from PG and TS source, but for now this looks
too much to set up in CI. I'm filing the obvious typos though.

Author: akuzm

src/bgw/job_stat.c

@@ -610,7 +610,7 @@ bgw_job_stat_insert_relation(Relation rel, int32 bgw_job_id, bool mark_start,
 
 	if (mark_start)
 	{
-		/* This is udone by any of the end marks */
+		/* This is undone by any of the end marks */
 		values[AttrNumberGetAttrOffset(Anum_bgw_job_stat_last_run_success)] = BoolGetDatum(false);
 		values[AttrNumberGetAttrOffset(Anum_bgw_job_stat_total_crashes)] = Int64GetDatum(1);
 		values[AttrNumberGetAttrOffset(Anum_bgw_job_stat_consecutive_crashes)] = Int32GetDatum(1);

src/partition_chunk.c

@@ -400,7 +400,7 @@ partition_chunk_attach(const Hypertable *ht, const Chunk *chunk)
 }
 
 /*
- * ExecutoreEnd hook to attach cached partition chunks to their hypertables.
+ * ExecutorEnd hook to attach cached partition chunks to their hypertables.
  */
 
 static void

src/planner/expand_hypertable.c

@@ -1247,7 +1247,7 @@ chunk_fully_covered(HypertableRestrictInfo *hri, Chunk const *chunk)
 	}
 
 	/*
-	 * DimensionRetrictInfo strategy should only be one BTGreaterStrategyNumber
+	 * DimensionRestrictInfo strategy should only be one BTGreaterStrategyNumber
 	 * or BTGreaterEqualStrategyNumber on the lower boundary and
 	 * BTLessStrategyNumber or BTLessEqualStrategyNumber on the upper boundary.
 	 *

src/planner/planner.c

@@ -824,7 +824,7 @@ get_parent_rte(const PlannerInfo *root, Index rti)
  * related metadata: like chunk_status and pointer to hypertable entry.
  * It is okay to cache a pointer to the hypertable, since this cache is
  * confined to the lifetime of the query and not used across queries.
- * If the parent reolid is known, the caller can specify it to avoid the costly
+ * If the parent relid is known, the caller can specify it to avoid the costly
  * lookup. Otherwise pass InvalidOid.
  */
 static BaserelInfoEntry *

src/process_utility.c

@@ -394,7 +394,7 @@ check_altertable_add_column_for_compressed(ParseState *parse_state, Hypertable *
 				case CONSTR_UNIQUE:
 					break;
 				/*
-				 * We can safelly ignore NULL constraints because it does nothing
+				 * We can safely ignore NULL constraints because it does nothing
 				 * and according to Postgres docs is useless and exist just for
 				 * compatibility with other database systems
 				 * https://www.postgresql.org/docs/current/ddl-constraints.html#id-1.5.4.6.6

src/process_utility.h

@@ -54,7 +54,7 @@ extern void ts_process_utility_set_expect_chunk_modification(bool expect);
  * SPI_inside_nonatomic_context function, that would have been sufficient
  * for isTopLevel flag, but it currently returns false when SPI connection
  * is absent (that is a valid scenario when C procedures are called from
- * top-lelev SQL instead of PLPG procedures or DO blocks) so it cannot be
+ * top-level SQL instead of PLPG procedures or DO blocks) so it cannot be
  * used.
  *
  * To work around this the value of ProcessUtilityContext parameter is

src/ts_catalog/chunk_column_stats.c

@@ -1310,7 +1310,7 @@ ts_chunk_column_stats_get_chunk_ids_by_scan(DimensionRestrictInfo *dri)
 		 * (Entry is typically marked "invalid" when a compressed chunk becomes partial
 		 * due to DML in it.)
 		 *
-		 * Also, if we have a valid chunnk with -inf/+inf entries then it matches all
+		 * Also, if we have a valid chunk with -inf/+inf entries then it matches all
 		 * queries
 		 */
 		if (!fd.valid || (fd.range_start == PG_INT64_MIN && fd.range_end == PG_INT64_MAX))

src/ts_catalog/continuous_aggs_watermark.c

@@ -97,7 +97,7 @@ TS_FUNCTION_INFO_V1(ts_continuous_agg_watermark);
  * materialized data and real-time data in the UNION query.
  *
  * The watermark is stored into `_timescaledb_catalog.continuous_aggs_watermark`
- * catalog table by the `refresh_continuous_agregate` procedure. It is defined
+ * catalog table by the `refresh_continuous_aggregate` procedure. It is defined
  * as the end of the last (highest) bucket in the materialized hypertable of a
  * continuous aggregate.
  *

src/ts_stats/ts_stats_segment.c

@@ -519,8 +519,8 @@ ts_stats_chunk_segment_prepare_upsert(TsStatsChunkSegment *seg, TsStatsRelids re
 	}
 
 	/* at this point we haven't found the chunk so we first check the empty slots.
-	 * they may be taken conncurrently by another process, so they need to be checked
-	 * again. the order of the empty slots are somwewhat ordered as we gathered them
+	 * they may be taken concurrently by another process, so they need to be checked
+	 * again. the order of the empty slots are somewhat ordered as we gathered them
 	 * in the bucket recency order. best to traverse them in this recency order so
 	 * the buckets keep the recency property as much as possible.
 	 */

tsl/src/chunk_merge.c

@@ -528,7 +528,7 @@ merge_chunks_multidim_allowed(void)
  *
  * https://github.com/postgres/postgres/commit/9695835538c2c8e9cd0048028b8c85e1bbf5c79c
  *
- * The fix is part of PG 17.3. Howevever, this still leaves PG 17.0 - 17.2
+ * The fix is part of PG 17.3. However, this still leaves PG 17.0 - 17.2
  * with different behavior.
  *
  * To make the merge chunks code work for the "broken" versions we make PG