Carl-Zhou-CN commented on code in PR #6975:
URL: https://github.com/apache/seatunnel/pull/6975#discussion_r1637649181
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seatunnel-connectors-v2/connector-clickhouse/src/main/java/org/apache/seatunnel/connectors/seatunnel/clickhouse/source/ClickhouseSourceFactory.java:
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@@ -37,11 +61,60 @@ public String factoryIdentifier() {
return "Clickhouse";
}
+ @Override
+ public <T, SplitT extends SourceSplit, StateT extends Serializable>
+ TableSource<T, SplitT, StateT>
createSource(TableSourceFactoryContext context) {
+ ReadonlyConfig readonlyConfig = context.getOptions();
+ List<ClickHouseNode> nodes =
ClickhouseUtil.createNodes(readonlyConfig);
+
+ String sql = readonlyConfig.get(SQL);
+ ClickHouseNode currentServer =
nodes.get(ThreadLocalRandom.current().nextInt(nodes.size()));
+ try (ClickHouseClient client =
ClickHouseClient.newInstance(currentServer.getProtocol());
+ ClickHouseResponse response =
+ client.connect(currentServer)
+
.format(ClickHouseFormat.RowBinaryWithNamesAndTypes)
+ .query(modifySQLToLimit1(sql))
+ .executeAndWait()) {
+ TableSchema.Builder builder = TableSchema.builder();
+ int columnSize = response.getColumns().size();
+ for (int i = 0; i < columnSize; i++) {
+ String columnName =
response.getColumns().get(i).getColumnName();
+ SeaTunnelDataType<?> seaTunnelDataType =
+ TypeConvertUtil.convert(response.getColumns().get(i));
+ builder.column(
+ PhysicalColumn.of(
+ columnName, seaTunnelDataType, Long.MAX_VALUE,
true, null, null));
Review Comment:
PhysicalColumn.of(
column.getColumnName(),
TypeConvertUtil.convert(column),
Long.valueOf(column.getEstimatedLength()),
column.getScale(),
column.isNullable(),
null,
null);
Isn't that better?
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