Skip to content

Added BigQuery capability to BigQuery SQL Engine #967

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
fernst merged 1 commit into from
Apr 15, 2022
Merged

Added BigQuery capability to BigQuery SQL Engine #967

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
21 changes: 14 additions & 7 deletions src/main/java/io/cdap/plugin/gcp/bigquery/relational/SQLExpressionFactory.java
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
package io.cdap.plugin.gcp.bigquery.relational;

import io.cdap.cdap.etl.api.engine.sql.StandardSQLCapabilities;
import io.cdap.cdap.etl.api.relational.Capability;
import io.cdap.cdap.etl.api.relational.CoreExpressionCapabilities;
import io.cdap.cdap.etl.api.relational.Expression;
Expand All @@ -12,7 +13,7 @@
import io.cdap.cdap.etl.api.relational.StringExpressionFactoryType;
import io.cdap.plugin.gcp.bigquery.sqlengine.builder.BigQueryBaseSQLBuilder;

import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

Expand All @@ -22,6 +23,15 @@
*/
public class SQLExpressionFactory implements ExpressionFactory<String> {

private static final Set<Capability> CAPABILITIES = Collections.unmodifiableSet(
new HashSet<Capability>() {{
add(StringExpressionFactoryType.SQL);
add(StandardSQLCapabilities.BIGQUERY);
add(CoreExpressionCapabilities.CAN_GET_QUALIFIED_DATASET_NAME);
add(CoreExpressionCapabilities.CAN_GET_QUALIFIED_COLUMN_NAME);
add(CoreExpressionCapabilities.CAN_SET_DATASET_ALIAS);
}});

/**
* Gets the expression factory type, which in this case is SQL.
*
Expand All @@ -46,14 +56,11 @@ public Expression compile(String expression) {
/**
* Get the set of Capabilities supported, which in this case is SQL.
*
* @return A single capability, {@link StringExpressionFactoryType}.SQL.
* @return a set containing all capabilities supported by this SQL engine.
*/
@Override
public Set<Capability> getCapabilities() {
return new HashSet<>(Arrays.asList(StringExpressionFactoryType.SQL,
CoreExpressionCapabilities.CAN_GET_QUALIFIED_DATASET_NAME,
CoreExpressionCapabilities.CAN_GET_QUALIFIED_COLUMN_NAME,
CoreExpressionCapabilities.CAN_SET_DATASET_ALIAS));
return CAPABILITIES;
}

/**
Expand All @@ -79,7 +86,7 @@ public ExtractableExpression<String> getQualifiedDataSetName(Relation relation)
* The resulting expression will be invalid if the relation is not a {@link BigQueryRelation}
* or the column does not exist in this relation.
* @param relation supplied relation.
* @param column column name.
* @param column column name.
* @return valid containing the column name wrapped in quotes; or invalid expression.
*/
@Override
Expand Down