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Snowflake: Support CREATE VIEW myview IF NOT EXISTS (#1961)
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etgarperets 2025-07-30 13:24:16 +03:00 • committed by GitHub
parent 15d8bfea62
commit 91273703d4
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4 changed files with 56 additions and 6 deletions
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12
src/parser/mod.rs
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@ -5818,12 +5818,17 @@ impl<'a> Parser<'a> {
) -> Result<Statement, ParserError> {
let materialized = self.parse_keyword(Keyword::MATERIALIZED);
self.expect_keyword_is(Keyword::VIEW)?;
let if_not_exists = dialect_of!(self is BigQueryDialect|SQLiteDialect|GenericDialect)
let allow_unquoted_hyphen = dialect_of!(self is BigQueryDialect);
// Tries to parse IF NOT EXISTS either before name or after name
// Name before IF NOT EXISTS is supported by snowflake but undocumented
let if_not_exists_first =
self.parse_keywords(&[Keyword::IF, Keyword::NOT, Keyword::EXISTS]);
let name = self.parse_object_name(allow_unquoted_hyphen)?;
let name_before_not_exists = !if_not_exists_first
&& self.parse_keywords(&[Keyword::IF, Keyword::NOT, Keyword::EXISTS]);
let if_not_exists = if_not_exists_first || name_before_not_exists;
// Many dialects support `OR ALTER` right after `CREATE`, but we don't (yet).
// ANSI SQL and Postgres support RECURSIVE here, but we don't support it either.
let allow_unquoted_hyphen = dialect_of!(self is BigQueryDialect);
let name = self.parse_object_name(allow_unquoted_hyphen)?;
let columns = self.parse_view_columns()?;
let mut options = CreateTableOptions::None;
let with_options = self.parse_options(Keyword::WITH)?;
@ -5890,6 +5895,7 @@ impl<'a> Parser<'a> {
temporary,
to,
params: create_view_params,
name_before_not_exists,
})
}