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package test.postgresql;
import gudusoft.gsqlparser.EDataType;
import gudusoft.gsqlparser.EDbVendor;
import gudusoft.gsqlparser.EExpressionType;
import gudusoft.gsqlparser.TGSqlParser;
import gudusoft.gsqlparser.nodes.TExpression;
import gudusoft.gsqlparser.stmt.TSelectSqlStatement;
import junit.framework.TestCase;
public class testJSON extends TestCase {
public void test1(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '[{\"a\":\"foo\"},{\"b\":\"bar\"},{\"c\":\"baz\"}]'::json->2;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
assertTrue(expr.getExpressionType() == EExpressionType.json_get_object);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.json_t);
}
public void test2(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '[1,2,3]'::json->>2;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
assertTrue(expr.getExpressionType() == EExpressionType.json_get_text);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.json_t);
}
public void test3(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"a\": {\"b\":{\"c\": \"foo\"}}}'::json#>'{a,b}';";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
assertTrue(expr.getExpressionType() == EExpressionType.json_get_object_at_path);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.json_t);
}
public void test4(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"a\":[1,2,3],\"b\":[4,5,6]}'::json#>>'{a,2}';";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
assertTrue(expr.getExpressionType() == EExpressionType.json_get_text_at_path);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.json_t);
}
public void test_left_contain(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"a\":1, \"b\":2}'::jsonb @> '{\"b\":2}'::jsonb;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
//System.out.println(expr.getExpressionType().toString());
assertTrue(expr.getExpressionType() == EExpressionType.json_left_contain);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.jsonb_t);
}
public void test_right_contain(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"b\":2}'::jsonb <@ '{\"a\":1, \"b\":2}'::jsonb;";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
//System.out.println(expr.getExpressionType().toString());
assertTrue(expr.getExpressionType() == EExpressionType.json_right_contain);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.jsonb_t);
}
public void test_exist(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"a\":1, \"b\":2}'::jsonb ? 'b';";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
//System.out.println(expr.getExpressionType().toString());
assertTrue(expr.getExpressionType() == EExpressionType.json_exist);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.jsonb_t);
}
public void test_exist_any(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '{\"a\":1, \"b\":2, \"c\":3}'::jsonb ?| array['b', 'c'];";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
//System.out.println(expr.getExpressionType().toString());
assertTrue(expr.getExpressionType() == EExpressionType.json_any_exist);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.jsonb_t);
}
public void test_exist_all(){
TGSqlParser sqlparser = new TGSqlParser(EDbVendor.dbvpostgresql);
sqlparser.sqltext = "select '[\"a\", \"b\"]'::jsonb ?& array['a', 'b'];";
assertTrue(sqlparser.parse() == 0);
TSelectSqlStatement select = (TSelectSqlStatement)sqlparser.sqlstatements.get(0);
TExpression expr = select.getResultColumnList().getResultColumn(0).getExpr();
//System.out.println(expr.getExpressionType().toString());
assertTrue(expr.getExpressionType() == EExpressionType.json_all_exist);
TExpression lexpr = expr.getLeftOperand();
assertTrue(lexpr.getExpressionType() == EExpressionType.typecast_t);
assertTrue(lexpr.getTypeName().getDataType() == EDataType.jsonb_t);
}
}