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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2020/06/09 16:25:24 UTC
[GitHub] [shardingsphere] ganzr edited a comment on issue #5960: sql must specify databaseName?
ganzr edited a comment on issue #5960:
URL: https://github.com/apache/shardingsphere/issues/5960#issuecomment-641086188
**exception thrown by sharding-proxy:**
[ERROR] 15:02:37.405 [ShardingSphere-Command-8] o.a.s.s.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitEscapedTableReference(MySQLDMLVisitor.java:491)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitEscapedTableReference(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$EscapedTableReferenceContext.accept(MySQLStatementParser.java:5947)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReferences(MySQLDMLVisitor.java:484)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitTableReferences(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$TableReferencesContext.accept(MySQLStatementParser.java:5891)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitFromClause(MySQLDMLVisitor.java:476)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitFromClause(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$FromClauseContext.accept(MySQLStatementParser.java:5846)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:329)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelectClause(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectClauseContext.accept(MySQLStatementParser.java:4551)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:317)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitUnionClause(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$UnionClauseContext.accept(MySQLStatementParser.java:4446)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:309)
at org.apache.shardingsphere.sql.parser.mysql.visitor.impl.MySQLDMLVisitor.visitSelect(MySQLDMLVisitor.java:127)
at org.apache.shardingsphere.sql.parser.autogen.MySQLStatementParser$SelectContext.accept(MySQLStatementParser.java:3098)
at org.antlr.v4.runtime.tree.AbstractParseTreeVisitor.visit(AbstractParseTreeVisitor.java:18)
at org.apache.shardingsphere.sql.parser.SQLParserEngine.parse0(SQLParserEngine.java:80)
at org.apache.shardingsphere.sql.parser.SQLParserEngine.parse(SQLParserEngine.java:61)
at org.apache.shardingsphere.shardingproxy.backend.text.TextProtocolBackendHandlerFactory.newInstance(TextProtocolBackendHandlerFactory.java:69)
at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.<init>(MySQLComQueryPacketExecutor.java:65)
at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.MySQLCommandExecutorFactory.newInstance(MySQLCommandExecutorFactory.java:70)
at org.apache.shardingsphere.shardingproxy.frontend.mysql.command.MySQLCommandExecuteEngine.getCommandExecutor(MySQLCommandExecuteEngine.java:59)
at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:92)
at org.apache.shardingsphere.shardingproxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:71)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
**sql: select * from BLOCK;**
**confilg rules:**
shardingRule:
tables:
BLOCK:
actualDataNodes: ds_${0..1}.BLOCK
tableStrategy:
inline:
shardingColumn: ID
algorithmExpression: BLOCK_${ID % 2}
keyGenerator:
type: SNOWFLAKE
column: ID
STATE:
actualDataNodes: ds_${0..1}.STATE
tableStrategy:
inline:
shardingColumn: ID
algorithmExpression: STATE_${ID % 2}
TRANSACTION:
actualDataNodes: ds_${0..1}.TRANSACTION
tableStrategy:
inline:
shardingColumn: ID
algorithmExpression: TRANSACTION_${ID % 2}
bindingTables:
- BLOCK,STATE,TRANSACTION
broadcastTables:
- BLOCK_CACHE,
defaultDataSourceName: ds_0
defaultDatabaseStrategy:
inline:
shardingColumn: ID
algorithmExpression: ds_${ID % 2}
defaultTableStrategy:
none:
**server config:**
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