From e26bee8ce9d2122c0618d63ad06947edb780b20a Mon Sep 17 00:00:00 2001
From: "a.tolstoy" <a.tolstoy@picodata.io>
Date: Fri, 7 Apr 2023 15:37:35 +0300
Subject: [PATCH] align ebnf source with what is actually used to generate svg
diagrams
---
doc/sql/query.ebnf | 90 ++++++++++++++++++++++------------------------
1 file changed, 42 insertions(+), 48 deletions(-)
diff --git a/doc/sql/query.ebnf b/doc/sql/query.ebnf
index 89cfeae930..6ef0e78f34 100644
--- a/doc/sql/query.ebnf
+++ b/doc/sql/query.ebnf
@@ -1,49 +1,43 @@
-Query ::= Select | Select 'union all' Select | Select ('except' | 'except distinct') Select | Values | Insert
-Select ::= 'select' (Column (',' Column)*) 'from' (Table | Select) ('as' Alias)? ( ('inner')? 'join' (Table | Select) ('as' Alias)? 'on' Expression )? ( 'where' Expression )? ( 'group by' GroupBy )?
-Column ::= '*' | Table '.' '*' | Expression | Expression 'as' Alias
-Expression ::= Expression 'or' Expression
- | Expression 'and' Expression
- | Expression '*' Expression
- | Expression '/' Expression
- | Expression '+' Expression
- | Expression '-' Expression
- | Expression '=' Expression
- | Expression '>' Expression
- | Expression '>=' Expression
- | Expression '<' Expression
- | Expression '<=' Expression
- | Expression ('<>' | '!=') Expression
- | Expression 'is null'
- | Expression 'is not null'
- | Expression 'between' Expression 'and' Expression
- | Reference
- | Select
- | Value
-GroupBy ::= Concat | Cast | Function | Reference
-Reference ::= ((Table | '"' Table '"') '.')? (Alias | '"' Alias '"')
-Value ::= 'true'
- | 'false'
- | 'null'
+Query ::= EXPLAIN* (SELECT | SELECT 'UNION ALL' SELECT | SELECT ('EXCEPT' | 'EXCEPT DISTINCT') SELECT | INSERT)
+EXPLAIN ::= 'SELECT'| 'INSERT'
+SELECT ::= 'SELECT' (column (',' column)*) 'FROM' (table (',' table)* | SELECT) ('AS' alias)? ( ('INNER')? 'JOIN' (table | SELECT | VALUES) ('AS' alias)? 'ON' expression )? ( 'WHERE' expression )? ( 'GROUP BY' groupby )?
+VALUES ::= 'VALUES' '(' (row (',' row)*) ')'
+ROW ::= '(' (value (',' value)*) ')'
+COLUMN ::= '*' | table '.' '*' | expression | expression 'AS' alias
+EXPRESSION ::= expression 'OR' expression
+ | expression 'AND' expression
+ | expression ('* | / | + | -| = | > | >= | < | <= | <> | <= | <> | != | IS NULL | IS NOT NULL') expression
+ | expression 'BETWEEN' expression 'AND' expression
+ | reference
+ | SELECT
+ | VALUE
+GROUPBY ::= concat | cast | function | reference
+REFERENCE ::= ((table | '"' table '"') '.')? (alias | '"' alias '"')
+VALUE ::= 'TRUE'
+ | 'FALSE'
+ | 'NULL'
| '?'
- | Integer
- | Unsigned
- | Double
- | Decimal
- | String
- | Row
-Cast ::= 'cast' '(' Expression 'as' Type ')'
-Type ::= 'any'
- | 'bool'
- | 'boolean'
- | 'decimal'
- | 'double'
- | 'int'
- | 'integer'
- | 'number'
- | 'scalar'
- | 'string'
- | 'text'
- | 'unsigned'
- | 'varchar' ('(' Length ')')?
-Insert ::= 'insert into' Table ('(' Reference (',' Reference)* ')')? (Select | Values)
-Values ::= 'values' '(' (Value (',' Value)*) ')' (',' '(' (Value (',' Value)*) ')')*
+ | INTEGER
+ | UNSIGNED
+ | DOUBLE
+ | DECIMAL
+ | STRING
+ | ROW
+CAST ::= 'CAST' '(' expression 'AS' type ')'
+TYPE ::= 'ANY'
+ | 'BOOL'
+ | 'BOOLEAN'
+ | 'DECIMAL'
+ | 'DOUBLE'
+ | 'INT'
+ | 'INTEGER'
+ | 'NUMBER'
+ | 'SCALAR'
+ | 'STRING'
+ | 'TEXT'
+ | 'UNSIGNED'
+ | 'VARCHAR' ('(' length ')')?
+INSERT ::= 'INSERT' 'INTO' (table (',' table)*) ('(' reference (',' reference)* ')')? VALUES '(' row ')'
+
+
+
--
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