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[fix](MySQL) implement SHOW CHARSET statement. (#31389)

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This commit is contained in:
Guangdong Liu
2024-02-27 17:32:06 +08:00
committed by yiguolei
parent 747faeed17
commit 47d112e4e6
7 changed files with 86 additions and 4 deletions
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22
fe/fe-core/src/main/java/org/apache/doris/qe/ShowExecutor.java
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@ -34,6 +34,8 @@ import org.apache.doris.analysis.ShowBrokerStmt;
import org.apache.doris.analysis.ShowBuildIndexStmt;
import org.apache.doris.analysis.ShowCatalogRecycleBinStmt;
import org.apache.doris.analysis.ShowCatalogStmt;
import org.apache.doris.analysis.ShowCharsetStmt;
import org.apache.doris.analysis.ShowClusterStmt;
import org.apache.doris.analysis.ShowCollationStmt;
import org.apache.doris.analysis.ShowColumnHistStmt;
import org.apache.doris.analysis.ShowColumnStatsStmt;
@ -339,6 +341,8 @@ public class ShowExecutor {
handleShowData();
} else if (stmt instanceof ShowQueryStatsStmt) {
handleShowQueryStats();
} else if (stmt instanceof ShowCharsetStmt) {
handleShowCharset();
} else if (stmt instanceof ShowCollationStmt) {
handleShowCollation();
} else if (stmt instanceof ShowPartitionsStmt) {
@ -1653,14 +1657,28 @@ public class ShowExecutor {
resultSet = new ShowResultSet(showStmt.getMetaData(), rows);
}
// Show character set.
private void handleShowCharset() throws AnalysisException {
ShowCharsetStmt showStmt = (ShowCharsetStmt) stmt;
List<List<String>> rows = Lists.newArrayList();
List<String> row = Lists.newArrayList();
// | utf8mb4 | UTF-8 Unicode | utf8mb4_general_ci | 4|
row.add(ctx.getSessionVariable().getCharsetServer());
row.add("UTF-8 Unicode");
row.add(ctx.getSessionVariable().getCollationConnection());
row.add("4");
rows.add(row);
resultSet = new ShowResultSet(showStmt.getMetaData(), rows);
}
// Show alter statement.
private void handleShowCollation() throws AnalysisException {
ShowCollationStmt showStmt = (ShowCollationStmt) stmt;
List<List<String>> rows = Lists.newArrayList();
List<String> row = Lists.newArrayList();
// | utf8mb4_0900_bin | utf8mb4 | 309 | Yes | Yes | 1 |
row.add("utf8mb4_0900_bin");
row.add("utf8mb4");
row.add(ctx.getSessionVariable().getCollationConnection());
row.add(ctx.getSessionVariable().getCharsetServer());
row.add("309");
row.add("Yes");
row.add("Yes");