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Code Issues Releases Wiki Activity

refactor sql parser.

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This commit is contained in:
wenshao
2017-08-30 16:51:50 +08:00
parent aa260c9ee3
commit 99fe9112b4
75 changed files with 994 additions and 974 deletions
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src/main/java/com/alibaba/druid/sql/parser/SQLExprParser.java
+5 -6
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@@ -56,10 +56,10 @@ public class SQLExprParser extends SQLParser {
static {
String[] strings = { "AVG", "COUNT", "MAX", "MIN", "STDDEV", "SUM" };
AGGREGATE_FUNCTIONS_CODES = FnvHash.fnv_64_lower(strings, true);
AGGREGATE_FUNCTIONS_CODES = FnvHash.fnv1a_64_lower(strings, true);
AGGREGATE_FUNCTIONS = new String[AGGREGATE_FUNCTIONS_CODES.length];
for (String str : strings) {
long hash = FnvHash.fnv_64_lower(str);
long hash = FnvHash.fnv1a_64_lower(str);
int index = Arrays.binarySearch(AGGREGATE_FUNCTIONS_CODES, hash);
AGGREGATE_FUNCTIONS[index] = str;
}
@@ -896,7 +896,6 @@ public class SQLExprParser extends SQLParser {
}
String methodName = null;
boolean isAggregate = false;
String aggMethodName = null;
SQLMethodInvokeExpr methodInvokeExpr;
SQLExpr owner = null;
@@ -933,7 +932,7 @@ public class SQLExprParser extends SQLParser {
} else if (expr instanceof SQLPropertyExpr) {
methodName = expr.toString();
aggMethodName = SQLUtils.normalize(methodName);
hash_lower = FnvHash.fnv_64_lower(aggMethodName);
hash_lower = FnvHash.fnv1a_64_lower(aggMethodName);
aggMethodName = getAggreateFunction(hash_lower);
owner = ((SQLPropertyExpr) expr).getOwner();
@@ -1229,7 +1228,7 @@ public class SQLExprParser extends SQLParser {
}
public boolean isAggreateFunction(String word) {
long hash_lower = FnvHash.fnv_64_lower(word);
long hash_lower = FnvHash.fnv1a_64_lower(word);
return isAggreateFunction(hash_lower);
}
@@ -1296,7 +1295,7 @@ public class SQLExprParser extends SQLParser {
if (lexer.token == Token.OF) {
lexer.nextToken();
SQLExpr of = this.expr();
SQLName of = this.name();
over.setOf(of);
}