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Added support of GRANT/REVOKE keywords #112

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Merged
merged 1 commit into from
Apr 23, 2025
Merged

Added support of GRANT/REVOKE keywords #112

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29 changes: 28 additions & 1 deletion jdbc/src/main/java/tech/ydb/jdbc/query/YdbQueryParser.java
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Original file line number Diff line number Diff line change
Expand Up @@ -254,7 +254,10 @@ public String parseSQL() throws SQLException {
// Detect scheme expression - starts with ALTER, DROP, CREATE
if (parseAlterKeyword(chars, keywordStart, keywordLength)
|| parseCreateKeyword(chars, keywordStart, keywordLength)
|| parseDropKeyword(chars, keywordStart, keywordLength)) {
|| parseDropKeyword(chars, keywordStart, keywordLength)
|| parseGrantKeyword(chars, keywordStart, keywordLength)
|| parseRevokeKeyword(chars, keywordStart, keywordLength)
) {
statement = new QueryStatement(type, QueryType.SCHEME_QUERY, QueryCmd.CREATE_ALTER_DROP);
batcher.readIdentifier(chars, keywordStart, keywordLength);
}
Expand Down Expand Up @@ -576,6 +579,30 @@ private static boolean parseDropKeyword(char[] query, int offset, int length) {
&& (query[offset + 3] | 32) == 'p';
}

private static boolean parseGrantKeyword(char[] query, int offset, int length) {
if (length != 5) {
return false;
}

return (query[offset] | 32) == 'g'
&& (query[offset + 1] | 32) == 'r'
&& (query[offset + 2] | 32) == 'a'
&& (query[offset + 3] | 32) == 'n'
&& (query[offset + 4] | 32) == 't';
}

private static boolean parseRevokeKeyword(char[] query, int offset, int length) {
if (length != 6) {
return false;
}

return (query[offset] | 32) == 'r'
&& (query[offset + 1] | 32) == 'e'
&& (query[offset + 2] | 32) == 'v'
&& (query[offset + 3] | 32) == 'o'
&& (query[offset + 4] | 32) == 'k'
&& (query[offset + 5] | 32) == 'e';
}
private static boolean parseScanKeyword(char[] query, int offset, int length) {
if (length != 4) {
return false;
Expand Down
2 changes: 2 additions & 0 deletions jdbc/src/test/java/tech/ydb/jdbc/query/YdbQueryParserTest.java
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Expand Up @@ -68,6 +68,8 @@ public void explainQueryTest(String query, String prepared, String cmd) throws S
" Alter table set;",
"Alter--comment\ntable set;",
"drOp table 'test'",
"Revoke--comment\npermission;",
"GRant table 'test'",
"-- comment \nCreate;",
})
public void schemeQueryTest(String query) throws SQLException {
Expand Down