Merge branch 'master' into vector_search_pre_and_post_filtering

Author: shankar-iyer

docs/en/sql-reference/functions/splitting-merging-functions.md

@@ -21,7 +21,7 @@ splitByChar(separator, s[, max_substrings]))
 
 **Arguments**
 
-- `separator` — The separator which should contain exactly one character. [String](../data-types/string.md).
+- `separator` — The separator must be a single-byte character. [String](../data-types/string.md).
 - `s` — The string to split. [String](../data-types/string.md).
 - `max_substrings` — An optional `Int64` defaulting to 0. If `max_substrings` > 0, the returned array will contain at most `max_substrings` substrings, otherwise the function will return as many substrings as possible.
 

tests/queries/0_stateless/01945_show_debug_warning.expect

@@ -44,7 +44,7 @@ expect eof
 
 if { $Debug_type > 0} {
 
-spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_CLIENT_BINARY \$CLICKHOUSE_CLIENT_EXPECT_OPT --history_file=$history_file"
+spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_CLIENT_BINARY \${CLICKHOUSE_CLIENT_EXPECT_OPT/--no-warnings} --history_file=$history_file"
 expect "Warnings:"
 expect " * Server was built in debug mode. It will work slowly."
 expect ":) "
@@ -58,7 +58,7 @@ send -- "q\r"
 expect eof
 }
 
-spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_CLIENT_BINARY \$CLICKHOUSE_CLIENT_EXPECT_OPT --max_memory_usage_for_all_queries=123 --history_file=$history_file"
+spawn bash -c "source $basedir/../shell_config.sh ; \$CLICKHOUSE_CLIENT_BINARY \${CLICKHOUSE_CLIENT_EXPECT_OPT/--no-warnings} --max_memory_usage_for_all_queries=123 --history_file=$history_file"
 expect "Warnings:"
 expect " * Obsolete setting"
 expect ":) "