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Add support for NULL escape char in pattern match searches (#1913)
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This commit is contained in:
Yoav Cohen 2025-07-04 21:04:51 +02:00 • committed by GitHub
parent 942d747d89
commit b0bcc46e22
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3 changed files with 29 additions and 12 deletions
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25
tests/sqlparser_common.rs
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@ -2040,7 +2040,7 @@ fn parse_ilike() {
pattern: Box::new(Expr::Value(
(Value::SingleQuotedString("%a".to_string())).with_empty_span()
)),
escape_char: Some('^'.to_string()),
escape_char: Some(Value::SingleQuotedString('^'.to_string())),
any: false,
},
select.selection.unwrap()
@ -2104,7 +2104,7 @@ fn parse_like() {
pattern: Box::new(Expr::Value(
(Value::SingleQuotedString("%a".to_string())).with_empty_span()
)),
escape_char: Some('^'.to_string()),
escape_char: Some(Value::SingleQuotedString('^'.to_string())),
any: false,
},
select.selection.unwrap()
@ -2167,7 +2167,24 @@ fn parse_similar_to() {
pattern: Box::new(Expr::Value(
(Value::SingleQuotedString("%a".to_string())).with_empty_span()
)),
escape_char: Some('^'.to_string()),
escape_char: Some(Value::SingleQuotedString('^'.to_string())),
},
select.selection.unwrap()
);
let sql = &format!(
"SELECT * FROM customers WHERE name {}SIMILAR TO '%a' ESCAPE NULL",
if negated { "NOT " } else { "" }
);
let select = verified_only_select(sql);
assert_eq!(
Expr::SimilarTo {
expr: Box::new(Expr::Identifier(Ident::new("name"))),
negated,
pattern: Box::new(Expr::Value(
(Value::SingleQuotedString("%a".to_string())).with_empty_span()
)),
escape_char: Some(Value::Null),
},
select.selection.unwrap()
);
@ -2185,7 +2202,7 @@ fn parse_similar_to() {
pattern: Box::new(Expr::Value(
(Value::SingleQuotedString("%a".to_string())).with_empty_span()
)),
escape_char: Some('^'.to_string()),
escape_char: Some(Value::SingleQuotedString('^'.to_string())),
})),
select.selection.unwrap()
);