Calcite - Syntax Tree (SqlNode)

Card Puncher Data Processing


SQL tree in Calcite.

The tree is build by the parser and each node (Tokens) is represented by The inter-wiki (caclite) does not exist and there is no default inter-wiki defined.SqlNode


To Sql

SqlNode can be converted back to SQL via the unparse method

Translate to another SQL dialect

With another dialect.



See Calcite - Sql Validation

Discover More
Card Puncher Data Processing
Calcite (Farrago, Optiq)

Calcite is a Java SQL Processing engine where the data storage is developed in plugin. Calcite is an open source cost based query optimizer and query execution framework. SQL Parser SQL Validation...
Card Puncher Data Processing
Calcite - Dialect (SqlDialect)

A dialect in calcite represents a language of a database. It determines how the SQL tree (SqlNodes) are transformed SQL (e.g. generate “LIMIT 5” or “FETCH 5 ROWS”) They are all in the apache/calcite/tree/master/core/src/main/java/org/apache/calcite/sql/dialectdialect...
Card Puncher Data Processing
Calcite - Getting Started (from Sql to Resultset)

A getting started page that shows a query planning process (ie from sql to resultset process) gerardnico/calcite/blob/master/src/test/java/com/gerardnico/calcite/
Card Puncher Data Processing
Calcite - Logical Plan (Logical algebra)

in Calcite A logical plan is a relational expression with only logical operator. Logical algebra has no implementation of the relational operator and therefore can't run. The logical plan is the first...
Card Puncher Data Processing
Calcite - Query Planning Process (Sql Processing)

in Calcite The query planning process is the entire process that takes a SQL to a result. The process can be resumed as follow: Phase 1: The Sql statement (Query) is parsed to build a parse tree...
Card Puncher Data Processing
Calcite - Relational Expression (RelNode, Algebra)

Relational Algebra in Calcite A relational expression is represented by a tree of RelNode. A RelNode can be considered as the same logic than the Spark dataframe. TableScan Project Filter...
Card Puncher Data Processing
Calcite - Relational row expressions (RexNode)

org/apache/calcite/rex/package-infoRex is an object model for relational row expressions (org/apache/calcite/rex/RexNodeRexNode) In a SqlNode types may not be available, but in a RexNode, it will. ...
Card Puncher Data Processing
Calcite - Sql Parser

The ''calcite SQL Parser is a LL(k) parser that build a Sql tree (SqlNode) The org/apache/calcite/sql/parser/SqlParserparserConfig parameters control the parse process. For example: identifiers...
Card Puncher Data Processing
Calcite - Sql Validation

Validation of a sql tree (SqlNode) With the query planning utility as shown in the getting started With a org/apache/calcite/sql/validate/SqlValidatorUtilSqlValidatorUtil. In the example below,...

Share this page:
Follow us:
Task Runner