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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)");
}
public Long count() throws SQLException {
if (!stmt.isClosed()) {
ResultSet result = stmt.executeQuery("SELECT count(*) from test.meters");
public long count() throws SQLException {
try (ResultSet result = stmt.executeQuery("SELECT count(*) from test.meters")) {
result.next();
return result.getLong(1);
}
return null;
}
/**
* show test.stables;
*
* 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");
public long getTableCount() throws SQLException {
try (ResultSet result = stmt.executeQuery("select count(*) from information_schema.ins_tables where db_name = 'test';")) {
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.
*/
private int maxSQLLength;
private int maxSQLLength = 800_000;
/**
* Map from table name to column values. For example:
@ -81,14 +81,6 @@ public class SQLWriter {
conn = getConnection();
stmt = conn.createStatement();
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) {
// convert to error code defined in taoserror.h
int errorCode = e.getErrorCode() & 0xffff;
if (errorCode == 0x362 || errorCode == 0x218) {
if (errorCode == 0x2603) {
// Table does not exist
createTables();
executeSQL(sql);