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Improve ALTER error messages for unsupported syntax

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This commit is contained in:
Nickolay Ponomarev 2019-04-27 04:01:10 +03:00
parent 787cd9a717
commit d65274bc31
1 changed files with 9 additions and 9 deletions
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18
src/sqlparser.rs
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@ -846,20 +846,20 @@ impl Parser {
self.expect_keyword("TABLE")?;
let _ = self.parse_keyword("ONLY");
let table_name = self.parse_object_name()?;
let operation: Result<AlterOperation, ParserError> =
if self.parse_keywords(vec!["ADD", "CONSTRAINT"]) {
let operation = if self.parse_keyword("ADD") {
if self.parse_keyword("CONSTRAINT") {
let constraint_name = self.parse_identifier()?;
let table_key = self.parse_table_key(constraint_name)?;
Ok(AlterOperation::AddConstraint(table_key))
AlterOperation::AddConstraint(table_key)
} else {
return parser_err!(format!(
"Expecting ADD CONSTRAINT, found :{:?}",
self.peek_token()
));
};
return self.expected("CONSTRAINT after ADD", self.peek_token());
}
} else {
return self.expected("ADD after ALTER TABLE", self.peek_token());
};
Ok(SQLStatement::SQLAlterTable {
name: table_name,
operation: operation?,
operation,
})
}