Why Go
- Case Studies
  
  Common problems companies solve with Go
- Use Cases
  
  Stories about how and why companies use Go
- Security
  
  How Go can help keep you secure by default
Learn
Docs
- Effective Go
  
  Tips for writing clear, performant, and idiomatic Go code
- Go User Manual
  
  A complete introduction to building software with Go
- Standard library
  
  Reference documentation for Go's standard library
- Release Notes
  
  Learn what's new in each Go release
Packages
Community
- Recorded Talks
  
  Videos from prior events
- Meetups
  
  Meet other local Go developers
- Conferences
  
  Learn and network with Go developers from around the world
- Go blog
  
  The Go project's official blog.
- Go project
  
  Get help and stay informed from Go
- Get connected

dialect

package

Go to main page

Versions in this module

v3

v3.8.4

Jun 8, 2026

v3.8.3

Jun 8, 2026

v3.8.2

May 1, 2026

v3.8.1

Apr 27, 2026

v3.8.0

Apr 27, 2026

Changes in this version

type Name

+ const Spark

v3.7.1

Apr 27, 2026

v3.7.0

Apr 27, 2026

v3.6.0

Feb 25, 2026

Changes in this version

+ var ErrUnsupportedFeature = errors.New("unsupported dialect feature")

+ func Register(name Name, factory func() Dialect)

+ type Dialect interface

+ ConvertRegex func(re2Pattern string) (pattern string, caseInsensitive bool, err error)

+ MaxIdentifierLength func() int

+ Name func() Name

+ ReservedKeywords func() map[string]bool

+ SupportsIndexAnalysis func() bool

+ SupportsJSONB func() bool

+ SupportsNativeArrays func() bool

+ SupportsRegex func() bool

+ ValidateFieldName func(name string) error

+ WriteArrayLength func(w *strings.Builder, dimension int, writeExpr func() error) error

+ WriteArrayLiteralClose func(w *strings.Builder)

+ WriteArrayLiteralOpen func(w *strings.Builder)

+ WriteArrayMembership func(w *strings.Builder, writeElem func() error, writeArray func() error) error

+ WriteArraySubqueryExprClose func(w *strings.Builder)

+ WriteArraySubqueryOpen func(w *strings.Builder)

+ WriteBytesLiteral func(w *strings.Builder, value []byte) error

+ WriteCastToNumeric func(w *strings.Builder)

+ WriteContains func(w *strings.Builder, writeHaystack, writeNeedle func() error) error

+ WriteDuration func(w *strings.Builder, value int64, unit string)

+ WriteEmptyTypedArray func(w *strings.Builder, typeName string)

+ WriteEpochExtract func(w *strings.Builder, writeExpr func() error) error

+ WriteExtract func(w *strings.Builder, part string, writeExpr func() error, writeTZ func() error) error

+ WriteInterval func(w *strings.Builder, writeValue func() error, unit string) error

+ WriteJSONArrayElements func(w *strings.Builder, isJSONB bool, asText bool, writeExpr func() error) error

+ WriteJSONArrayLength func(w *strings.Builder, writeExpr func() error) error

+ WriteJSONArrayMembership func(w *strings.Builder, jsonFunc string, writeExpr func() error) error

+ WriteJSONExistence func(w *strings.Builder, isJSONB bool, fieldName string, writeBase func() error) error

+ WriteJSONExtractPath func(w *strings.Builder, pathSegments []string, writeRoot func() error) error

+ WriteJSONFieldAccess func(w *strings.Builder, writeBase func() error, fieldName string, isFinal bool) error

+ WriteJoin func(w *strings.Builder, writeArray, writeDelim func() error) error

+ WriteLikeEscape func(w *strings.Builder)

+ WriteListIndex func(w *strings.Builder, writeArray func() error, writeIndex func() error) error

+ WriteListIndexConst func(w *strings.Builder, writeArray func() error, index int64) error

+ WriteNestedJSONArrayMembership func(w *strings.Builder, writeExpr func() error) error

+ WriteParamPlaceholder func(w *strings.Builder, paramIndex int)

+ WriteRegexMatch func(w *strings.Builder, writeTarget func() error, pattern string, ...) error

+ WriteSplit func(w *strings.Builder, writeStr, writeDelim func() error) error

+ WriteSplitWithLimit func(w *strings.Builder, writeStr, writeDelim func() error, limit int64) error

+ WriteStringConcat func(w *strings.Builder, writeLHS, writeRHS func() error) error

+ WriteStringLiteral func(w *strings.Builder, value string)

+ WriteStructClose func(w *strings.Builder)

+ WriteStructOpen func(w *strings.Builder)

+ WriteTimestampArithmetic func(w *strings.Builder, op string, writeTS, writeDur func() error) error

+ WriteTimestampCast func(w *strings.Builder, writeExpr func() error) error

+ WriteTypeName func(w *strings.Builder, celTypeName string)

+ WriteUnnest func(w *strings.Builder, writeSource func() error) error

+ func Get(name Name) (Dialect, error)

+ type IndexAdvisor interface

+ RecommendIndex func(pattern IndexPattern) *IndexRecommendation

+ SupportedPatterns func() []PatternType

+ func GetIndexAdvisor(d Dialect) (IndexAdvisor, bool)

+ type IndexPattern struct

+ Column string

+ Pattern PatternType

+ TableHint string

+ type IndexRecommendation struct

+ Column string

+ Expression string

+ IndexType string

+ Reason string

+ type Name string

+ const BigQuery

+ const DuckDB

+ const MySQL

+ const PostgreSQL

+ const SQLite

+ func Registered() []Name

+ type PatternType int

+ const PatternArrayComprehension

+ const PatternArrayMembership

+ const PatternComparison

+ const PatternJSONAccess

+ const PatternJSONArrayComprehension

+ const PatternRegexMatch