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fix: adapter 3.0 (#20391)

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huolibo 2023-03-10 17:01:23 +08:00 committed by GitHub
parent 1bb976a545
commit d632f035a2
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 7 additions and 26 deletions
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21
docs/examples/java/src/main/java/com/taos/example/highvolume/DataBaseMonitor.java
View File

@ -36,28 +36,17 @@ public class DataBaseMonitor {
stmt.execute("CREATE STABLE test.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)"); stmt.execute("CREATE STABLE test.meters (ts TIMESTAMP, current FLOAT, voltage INT, phase FLOAT) TAGS (location BINARY(64), groupId INT)");
} }
public Long count() throws SQLException { public long count() throws SQLException {
if (!stmt.isClosed()) { try (ResultSet result = stmt.executeQuery("SELECT count(*) from test.meters")) {
ResultSet result = stmt.executeQuery("SELECT count(*) from test.meters");
result.next(); result.next();
return result.getLong(1); return result.getLong(1);
} }
return null;
} }
/** public long getTableCount() throws SQLException {
* show test.stables; try (ResultSet result = stmt.executeQuery("select count(*) from information_schema.ins_tables where db_name = 'test';")) {
*
* name | created_time | columns | tags | tables |
* ============================================================================================
* meters | 2022-07-20 08:39:30.902 | 4 | 2 | 620000 |
*/
public Long getTableCount() throws SQLException {
if (!stmt.isClosed()) {
ResultSet result = stmt.executeQuery("show test.stables");
result.next(); result.next();
return result.getLong(5); return result.getLong(1);
} }
return null;
} }
} }

12
docs/examples/java/src/main/java/com/taos/example/highvolume/SQLWriter.java
View File

@ -42,7 +42,7 @@ public class SQLWriter {
/** /**
* Maximum SQL length. * Maximum SQL length.
*/ */
private int maxSQLLength; private int maxSQLLength = 800_000;
/** /**
* Map from table name to column values. For example: * Map from table name to column values. For example:
@ -81,14 +81,6 @@ public class SQLWriter {
conn = getConnection(); conn = getConnection();
stmt = conn.createStatement(); stmt = conn.createStatement();
stmt.execute("use test"); stmt.execute("use test");
ResultSet rs = stmt.executeQuery("show variables");
while (rs.next()) {
String configName = rs.getString(1);
if ("maxSQLLength".equals(configName)) {
maxSQLLength = Integer.parseInt(rs.getString(2));
logger.info("maxSQLLength={}", maxSQLLength);
}
}
} }
/** /**
@ -149,7 +141,7 @@ public class SQLWriter {
} catch (SQLException e) { } catch (SQLException e) {
// convert to error code defined in taoserror.h // convert to error code defined in taoserror.h
int errorCode = e.getErrorCode() & 0xffff; int errorCode = e.getErrorCode() & 0xffff;
if (errorCode == 0x362 || errorCode == 0x218) { if (errorCode == 0x2603) {
// Table does not exist // Table does not exist
createTables(); createTables();
executeSQL(sql); executeSQL(sql);