in seatunnel-connectors-v2/connector-jdbc/src/main/java/org/apache/seatunnel/connectors/seatunnel/jdbc/internal/dialect/oracle/OracleTypeConverter.java [243:390]
public BasicTypeDefine reconvert(Column column) {
BasicTypeDefine.BasicTypeDefineBuilder builder =
BasicTypeDefine.builder()
.name(column.getName())
.nullable(column.isNullable())
.comment(column.getComment())
.defaultValue(column.getDefaultValue());
switch (column.getDataType().getSqlType()) {
case BOOLEAN:
builder.columnType(String.format("%s(%s)", ORACLE_NUMBER, 1));
builder.dataType(ORACLE_NUMBER);
builder.length(1L);
break;
case TINYINT:
case SMALLINT:
case INT:
case BIGINT:
builder.columnType(ORACLE_INTEGER);
builder.dataType(ORACLE_INTEGER);
break;
case FLOAT:
builder.columnType(ORACLE_BINARY_FLOAT);
builder.dataType(ORACLE_BINARY_FLOAT);
break;
case DOUBLE:
builder.columnType(ORACLE_BINARY_DOUBLE);
builder.dataType(ORACLE_BINARY_DOUBLE);
break;
case DECIMAL:
DecimalType decimalType = (DecimalType) column.getDataType();
long precision = decimalType.getPrecision();
int scale = decimalType.getScale();
if (precision <= 0) {
precision = DEFAULT_PRECISION;
scale = DEFAULT_SCALE;
log.warn(
"The decimal column {} type decimal({},{}) is out of range, "
+ "which is precision less than 0, "
+ "it will be converted to decimal({},{})",
column.getName(),
decimalType.getPrecision(),
decimalType.getScale(),
precision,
scale);
} else if (precision > MAX_PRECISION) {
scale = (int) Math.max(0, scale - (precision - MAX_PRECISION));
precision = MAX_PRECISION;
log.warn(
"The decimal column {} type decimal({},{}) is out of range, "
+ "which exceeds the maximum precision of {}, "
+ "it will be converted to decimal({},{})",
column.getName(),
decimalType.getPrecision(),
decimalType.getScale(),
MAX_PRECISION,
precision,
scale);
}
if (scale < 0) {
scale = 0;
log.warn(
"The decimal column {} type decimal({},{}) is out of range, "
+ "which is scale less than 0, "
+ "it will be converted to decimal({},{})",
column.getName(),
decimalType.getPrecision(),
decimalType.getScale(),
precision,
scale);
} else if (scale > MAX_SCALE) {
scale = MAX_SCALE;
log.warn(
"The decimal column {} type decimal({},{}) is out of range, "
+ "which exceeds the maximum scale of {}, "
+ "it will be converted to decimal({},{})",
column.getName(),
decimalType.getPrecision(),
decimalType.getScale(),
MAX_SCALE,
precision,
scale);
}
builder.columnType(String.format("%s(%s,%s)", ORACLE_NUMBER, precision, scale));
builder.dataType(ORACLE_NUMBER);
builder.precision(precision);
builder.scale(scale);
break;
case BYTES:
if (column.getColumnLength() == null || column.getColumnLength() <= 0) {
builder.columnType(ORACLE_BLOB);
builder.dataType(ORACLE_BLOB);
} else if (column.getColumnLength() <= MAX_RAW_LENGTH) {
builder.columnType(
String.format("%s(%s)", ORACLE_RAW, column.getColumnLength()));
builder.dataType(ORACLE_RAW);
} else {
builder.columnType(ORACLE_BLOB);
builder.dataType(ORACLE_BLOB);
}
break;
case STRING:
if (column.getColumnLength() == null || column.getColumnLength() <= 0) {
builder.columnType(
String.format("%s(%s)", ORACLE_VARCHAR2, MAX_VARCHAR_LENGTH));
builder.dataType(ORACLE_VARCHAR2);
} else if (column.getColumnLength() <= MAX_VARCHAR_LENGTH) {
builder.columnType(
String.format("%s(%s)", ORACLE_VARCHAR2, column.getColumnLength()));
builder.dataType(ORACLE_VARCHAR2);
} else {
builder.columnType(ORACLE_CLOB);
builder.dataType(ORACLE_CLOB);
}
break;
case DATE:
builder.columnType(ORACLE_DATE);
builder.dataType(ORACLE_DATE);
break;
case TIMESTAMP:
if (column.getScale() == null || column.getScale() <= 0) {
builder.columnType(ORACLE_TIMESTAMP_WITH_LOCAL_TIME_ZONE);
} else {
int timestampScale = column.getScale();
if (column.getScale() > MAX_TIMESTAMP_SCALE) {
timestampScale = MAX_TIMESTAMP_SCALE;
log.warn(
"The timestamp column {} type timestamp({}) is out of range, "
+ "which exceeds the maximum scale of {}, "
+ "it will be converted to timestamp({})",
column.getName(),
column.getScale(),
MAX_TIMESTAMP_SCALE,
timestampScale);
}
builder.columnType(
String.format("TIMESTAMP(%s) WITH LOCAL TIME ZONE", timestampScale));
builder.scale(timestampScale);
}
builder.dataType(ORACLE_TIMESTAMP_WITH_LOCAL_TIME_ZONE);
break;
default:
throw CommonError.convertToConnectorTypeError(
DatabaseIdentifier.ORACLE,
column.getDataType().getSqlType().name(),
column.getName());
}
return builder.build();
}