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Merge pull request #13618 from melin/master

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antlr4 support complete create table grammar
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alexey-milovidov 2020-08-11 18:58:00 +03:00 committed by GitHub
commit 291386fd2a
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2 changed files with 22 additions and 8 deletions
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5
utils/grammar/ClickHouseLexer.g4
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@ -27,9 +27,11 @@ K_CHECK : C H E C K;
K_CLUSTER : C L U S T E R;
K_COLUMN : C O L U M N;
K_COLLATE : C O L L A T E;
K_CODEC : C O D E C;
K_CREATE : C R E A T E;
K_CROSS : C R O S S;
K_DAY : D A Y;
K_DELETE : D E L E T E;
K_DESCRIBE : D E S C R I B E;
K_DESCENDING : D E S C E N D I N G;
K_DESC : D E S C;
@ -37,6 +39,7 @@ K_DATABASE : D A T A B A S E;
K_DATABASES : D A T A B A S E S;
K_DEFAULT : D E F A U L T;
K_DETACH : D E T A C H;
K_DISK : D I S K;
K_DISTINCT : D I S T I N C T;
K_DROP : D R O P;
K_ELSE : E L S E;
@ -104,8 +107,10 @@ K_TEST : T E S T;
K_THEN : T H E N;
K_TOTALS : T O T A L S;
K_TO : T O;
K_TTL : T T L;
K_OUTER: O U T E R;
K_VALUES : V A L U E S;
K_VOLUME : V O L U M E;
K_VIEW : V I E W;
K_UNION : U N I O N;
K_USE : U S E;

25
utils/grammar/ClickHouseParser.g4
View File

@ -49,7 +49,7 @@ select_query_main
select_groupby_step? select_having_step?
select_orderby_step?
select_limitby_step? select_limit_step?
select_settings_step?
settings_step?
;
select_with_step
@ -122,7 +122,7 @@ select_limitby_step
: K_LIMIT NUMERIC_LITERAL K_BY not_empty_expression_list
;
select_settings_step
settings_step
: K_SETTINGS assignment_list
;
@ -143,7 +143,12 @@ create_query
: ( K_CREATE | K_ATTACH ) K_TEMPORARY?
( K_DATABASE ( K_IF K_NOT K_EXISTS ) ? database_name
| K_TABLE ( K_IF K_NOT K_EXISTS ) ? full_table_name ( K_ON K_CLUSTER cluster_name ) ?
( LPAREN column_declaration_list RPAREN engine ( K_AS select_query ) ? // если VIEW - то есть и колонки и select.
( LPAREN column_declaration_list RPAREN engine ( K_AS select_query ) ?
K_ORDER K_BY LPAREN order_by_expression_list RPAREN
(K_PARTITION K_BY partitionExpr=expr)?
(K_SAMPLE K_BY sampleExpr=expr)?
table_ttl_list?
settings_step?
| engine K_AS ( select_query
| full_table_name engine? // wtf
)
@ -315,6 +320,14 @@ order_by_element
: expression_with_optional_alias ( K_DESC | K_DESCENDING | K_ASC | K_ASCENDING ) ? ( K_NULLS ( K_FIRST | K_LAST ) ) ? ( K_COLLATE STRING_LITERAL ) ?
;
table_ttl_list
: K_TTL table_ttl_declaration ( COMMA table_ttl_declaration ) *
;
table_ttl_declaration
: ttlExpr=expr (K_DELETE | K_TO K_DISK diskVal=STRING_LITERAL | K_TO K_VOLUME volumeVal=STRING_LITERAL)?
;
nested_table
: identifier LPAREN name_type_pair_list RPAREN
;
@ -336,10 +349,7 @@ column_declaration_list
;
column_declaration
: column_name
( ( K_DEFAULT | K_MATERIALIZED | K_ALIAS ) expr
| column_type
)
: column_name column_type (( K_DEFAULT | K_MATERIALIZED | K_ALIAS ) expr)? (K_CODEC(expr))? (K_TTL ttlExpr=expr)?
;
column_name
@ -581,4 +591,3 @@ err
throw new RuntimeException("UNEXPECTED_CHAR=" + $UNEXPECTED_CHAR.text);
}
;