sc

package
v1.1.18 Latest Latest
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 Go to latest Published: Mar 3, 2024 License: MIT Imports: 21 Imported by: 0

Documentation

Overview

Package sc contains definitions and functions for parsing Capillaries scripts

Index

Constants

View Source 
const (
	CreatorFileTypeUnknown int = 0
	CreatorFileTypeCsv     int = 1
	CreatorFileTypeParquet int = 2
)
View Source 
const (
	ReaderFileTypeUnknown int = 0
	ReaderFileTypeCsv     int = 1
	ReaderFileTypeParquet int = 2
)
View Source 
const (
	DefaultStringComponentLen int64 = 64
	MinStringComponentLen     int64 = 16
	MaxStringComponentLen     int64 = 1024
)
View Source 
const (
	ReservedParamBatchIdx string = "{batch_idx|string}"
	ReservedParamRunId    string = "{run_id|string}"
)
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const (
	HandlerExeTypeGeneric  string = "capi_daemon"
	HandlerExeTypeToolbelt string = "capi_toolbelt"
	HandlerExeTypeWebapi   string = "capi_webapi"
)
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const AllowedIdxNameRegex = "^idx[A-Za-z0-9_]+"
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const AllowedTableNameRegex = "[A-Za-z0-9_]+"
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const BeginningOfTimeMicro = int64(-62135596800000000) // time.Date(1, time.January, 1, 0, 0, 0, 0, time.UTC).UnixMicro()
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const CassandraDatetimeFormat string = "2006-01-02T15:04:05.000-07:00"

Cassandra timestamps are milliseconds. No microsecond support. On writes: - allows (but not requires) ":" in the timezone - allows (but not requires) "T" in as date/time separator

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const CreatorAlias string = "w"
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const CustomProcessorAlias string = "p"
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const DefaultBool bool = false
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const DefaultFloat float64 = float64(0.0)
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const DefaultInt int64 = int64(0)
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const DefaultPolicyCheckerConf string = `` /* 1464-byte string literal not displayed */

This conf should be never referenced in prod code. It's always in the the config.json. Or in the unit tests. Or in helper tools.

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const DefaultRowsetSize int = 1000
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const DefaultString string = ""
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const (
	FieldNameUnknown = "unknown_field_name"
)
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const LookupAlias string = "l"
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const MaxAcceptedBatchesByTableReader int = 1000000
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const MaxFileCreatorTopLimit int = 5000000

500k is conservative

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const MaxRowsetSize int = 100000
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const ProhibitedTableNameRegex = "^idx|^wf|^system"
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const ReaderAlias string = "r"

Variables

This section is empty.

Functions

func BuildKey 

func BuildKey(fieldMap map[string]any, idxDef *IdxDef) (string, error)

func CalculateFieldValue 

func CalculateFieldValue(fieldName string, fieldDef *WriteTableFieldDef, srcVars eval.VarValuesMap, canUseAggFunc bool) (any, error)

func CheckValueType 

func CheckValueType(val any, fieldType TableFieldType) error

func DefaultCassandraDecimal2 

func DefaultCassandraDecimal2() *inf.Dec

func DefaultDateTime 

func DefaultDateTime() time.Time

func DefaultDecimal2 

func DefaultDecimal2() decimal.Decimal

func GetDefaultFieldTypeValue 

func GetDefaultFieldTypeValue(fieldType TableFieldType) any

func IsValidFieldType 

func IsValidFieldType(fieldType TableFieldType) bool

func NewScriptFromFileBytes added in v1.1.13 

func NewScriptFromFileBytes(caPath string, privateKeys map[string]string, scriptUri string, jsonBytesScript []byte, scriptParamsUri string, jsonBytesParams []byte, customProcessorDefFactoryInstance CustomProcessorDefFactory, customProcessorsSettings map[string]json.RawMessage) (*ScriptDef, ScriptInitProblemType, error)

func NewScriptFromFiles 

func NewScriptFromFiles(caPath string, privateKeys map[string]string, scriptUri string, scriptParamsUri string, customProcessorDefFactoryInstance CustomProcessorDefFactory, customProcessorsSettings map[string]json.RawMessage) (*ScriptDef, ScriptInitProblemType, error)

func ParseRawGolangExpressionStringAndHarvestFieldRefs 

func ParseRawGolangExpressionStringAndHarvestFieldRefs(strExp string, usedFields *FieldRefs) (ast.Expr, error)

func ParseRawRelaxedGolangExpressionStringAndHarvestFieldRefs added in v1.1.4 

func ParseRawRelaxedGolangExpressionStringAndHarvestFieldRefs(strExp string, usedFields *FieldRefs, parserFlags FieldRefParserFlag) (ast.Expr, error)

func ValidateNodeType 

func ValidateNodeType(nodeType NodeType) error

func ValidateRerunPolicy 

func ValidateRerunPolicy(rerunPolicy NodeRerunPolicy) error

func ValidateStartPolicy 

func ValidateStartPolicy(startPolicy NodeStartPolicy) error

Types

type AggFinderVisitor 

type AggFinderVisitor struct {
	Error error
}

func (*AggFinderVisitor) Visit 

func (v *AggFinderVisitor) Visit(node ast.Node) ast.Visitor

type CsvCreatorSettings added in v1.1.9 

type CsvCreatorSettings struct {
	Separator string `json:"separator"`
}

type CsvReaderColumnSettings added in v1.1.9 

type CsvReaderColumnSettings struct {
	SrcColIdx    int    `json:"col_idx,omitempty"`
	SrcColHeader string `json:"col_hdr,omitempty"`
	SrcColFormat string `json:"col_format,omitempty"` // Optional for all except datetime
}

type CsvReaderSettings added in v1.1.9 

type CsvReaderSettings struct {
	SrcFileHdrLineIdx       int                    `json:"hdr_line_idx"`
	SrcFileFirstDataLineIdx int                    `json:"first_data_line_idx,omitempty"`
	Separator               string                 `json:"separator,omitempty"`
	ColumnIndexingMode      FileColumnIndexingMode `json:"-"`
}

type CustomProcessorDef 

type CustomProcessorDef interface {
	Deserialize(raw json.RawMessage, customProcSettings json.RawMessage, caPath string, privateKeys map[string]string) error
	GetFieldRefs() *FieldRefs
	GetUsedInTargetExpressionsFields() *FieldRefs
}

type CustomProcessorDefFactory 

type CustomProcessorDefFactory interface {
	Create(processorType string) (CustomProcessorDef, bool)
}

type DependencyPolicyDef 

type DependencyPolicyDef struct {
	EventPriorityOrderString string           `json:"event_priority_order"`
	IsDefault                bool             `json:"is_default"`
	Rules                    []DependencyRule `json:"rules"`
	OrderIdxDef              IdxDef
}

func (*DependencyPolicyDef) Deserialize 

func (polDef *DependencyPolicyDef) Deserialize(rawPol json.RawMessage) error

type DependencyRule 

type DependencyRule struct {
	Cmd              ReadyToRunNodeCmdType `json:"cmd"`
	RawExpression    string                `json:"expression"`
	ParsedExpression ast.Expr
}

type FieldRef 

type FieldRef struct {
	TableName string
	FieldName string
	FieldType TableFieldType
}

func IdxKeyFieldRef 

func IdxKeyFieldRef() FieldRef
func RunBatchKeyTokenFieldRef() FieldRef {
	return FieldRef{
		TableName: "db_system",
		FieldName: "token(run_id,batch_idx,key)",
		FieldType: FieldTypeInt}
}

func KeyTokenFieldRef 

func KeyTokenFieldRef() FieldRef

func RowidFieldRef 

func RowidFieldRef(tableName string) FieldRef

func RowidTokenFieldRef 

func RowidTokenFieldRef() FieldRef

func (*FieldRef) GetAliasHash 

func (fr *FieldRef) GetAliasHash() string

type FieldRefParserFlag added in v1.1.4 

type FieldRefParserFlag uint32
const (
	FieldRefStrict             FieldRefParserFlag = 0
	FieldRefAllowUnknownIdents FieldRefParserFlag = 1 << iota
	FieldRefAllowWhateverFeatureYouAreAddingHere
)

func (FieldRefParserFlag) HasFlag added in v1.1.4 

func (f FieldRefParserFlag) HasFlag(flag FieldRefParserFlag) bool

type FieldRefs 

type FieldRefs []FieldRef

func GetFieldRefsUsedInAllTargetExpressions 

func GetFieldRefsUsedInAllTargetExpressions(fieldDefMap map[string]*WriteTableFieldDef) FieldRefs

func JoinFieldRefs 

func JoinFieldRefs(srcFieldRefs ...*FieldRefs) *FieldRefs

func NewFieldRefsFromNodeEvent 

func NewFieldRefsFromNodeEvent() *FieldRefs

func (*FieldRefs) Append 

func (fieldRefs *FieldRefs) Append(otherFieldRefs FieldRefs)

func (*FieldRefs) AppendWithFilter 

func (fieldRefs *FieldRefs) AppendWithFilter(otherFieldRefs FieldRefs, tableFilter string)

func (*FieldRefs) FindByFieldName 

func (fieldRefs *FieldRefs) FindByFieldName(fieldName string) (*FieldRef, bool)

func (*FieldRefs) HasFieldsWithTableAlias 

func (fieldRefs *FieldRefs) HasFieldsWithTableAlias(tableAlias string) bool

type FileColumnIndexingMode 

type FileColumnIndexingMode string
const (
	FileColumnIndexingName    FileColumnIndexingMode = "name"
	FileColumnIndexingIdx     FileColumnIndexingMode = "idx"
	FileColumnIndexingUnknown FileColumnIndexingMode = "unknown"
)

type FileCreatorDef 

type FileCreatorDef struct {
	UrlTemplate                   string                 `json:"url_template"`
	RawHaving                     string                 `json:"having,omitempty"`
	Top                           TopDef                 `json:"top,omitempty"`
	Csv                           CsvCreatorSettings     `json:"csv,omitempty"`
	Parquet                       ParquetCreatorSettings `json:"parquet,omitempty"`
	Columns                       []WriteFileColumnDef   `json:"columns"`
	Having                        ast.Expr               `json:"-"`
	UsedInHavingFields            FieldRefs              `json:"-"`
	UsedInTargetExpressionsFields FieldRefs              `json:"-"`
	CreatorFileType               int                    `json:"-"`
}

func (*FileCreatorDef) CalculateFileRecordFromSrcVars 

func (creatorDef *FileCreatorDef) CalculateFileRecordFromSrcVars(srcVars eval.VarValuesMap) ([]any, error)

func (*FileCreatorDef) CheckFileRecordHavingCondition 

func (creatorDef *FileCreatorDef) CheckFileRecordHavingCondition(fileRecord []any) (bool, error)

func (*FileCreatorDef) Deserialize 

func (creatorDef *FileCreatorDef) Deserialize(rawWriter json.RawMessage) error

func (*FileCreatorDef) GetFieldRefsUsedInAllTargetFileExpressions 

func (creatorDef *FileCreatorDef) GetFieldRefsUsedInAllTargetFileExpressions() FieldRefs

func (*FileCreatorDef) HasTop 

func (creatorDef *FileCreatorDef) HasTop() bool

type FileReaderColumnDef 

type FileReaderColumnDef struct {
	DefaultValue string                      `json:"col_default_value,omitempty"` // Optional. If omitted, zero value is used
	Type         TableFieldType              `json:"col_type"`
	Csv          CsvReaderColumnSettings     `json:"csv,omitempty"`
	Parquet      ParquetReaderColumnSettings `json:"parquet,omitempty"`
}

type FileReaderDef 

type FileReaderDef struct {
	SrcFileUrls    []string                        `json:"urls"`
	Csv            CsvReaderSettings               `json:"csv,omitempty"`
	Columns        map[string]*FileReaderColumnDef `json:"columns"` // Keys are names used in table writer
	ReaderFileType int                             `json:"-"`
}

func (*FileReaderDef) Deserialize 

func (frDef *FileReaderDef) Deserialize(rawReader json.RawMessage) error

func (*FileReaderDef) ReadCsvLineToValuesMap added in v1.1.9 

func (frDef *FileReaderDef) ReadCsvLineToValuesMap(line *[]string, colVars eval.VarValuesMap) error

func (*FileReaderDef) ResolveCsvColumnIndexesFromNames added in v1.1.9 

func (frDef *FileReaderDef) ResolveCsvColumnIndexesFromNames(srcHdrLine []string) error

type IdxCaseSensitivity 

type IdxCaseSensitivity string
const (
	IdxCaseSensitive          IdxCaseSensitivity = "case_sensitive"
	IdxIgnoreCase             IdxCaseSensitivity = "ignore_case"
	IdxCaseSensitivityUnknown IdxCaseSensitivity = "case_sensitivity_unknown"
)

type IdxComponentDef 

type IdxComponentDef struct {
	FieldName       string
	CaseSensitivity IdxCaseSensitivity
	SortOrder       IdxSortOrder
	StringLen       int64          // For string fields only, default 64
	FieldType       TableFieldType // Populated from tgt_table def
}

type IdxDef 

type IdxDef struct {
	Uniqueness IdxUniqueness
	Components []IdxComponentDef
}

type IdxDefMap 

type IdxDefMap map[string]*IdxDef

type IdxSortOrder 

type IdxSortOrder string
const (
	IdxSortAsc     IdxSortOrder = "asc"
	IdxSortDesc    IdxSortOrder = "desc"
	IdxSortUnknown IdxSortOrder = "unknown"
)

type IdxUniqueness 

type IdxUniqueness string
const (
	IdxUnique            IdxUniqueness = "unique"
	IdxNonUnique         IdxUniqueness = "non_unique"
	IdxUniquenessUnknown IdxUniqueness = "unknown"
)

type IndexRef 

type IndexRef struct {
	TableName string
	IdxName   string
}

type LookupDef 

type LookupDef struct {
	IndexName                string         `json:"index_name"`
	RawJoinOn                string         `json:"join_on"`
	IsGroup                  bool           `json:"group"`
	RawFilter                string         `json:"filter"`
	LookupJoin               LookupJoinType `json:"join_type"`
	IdxReadBatchSize         int            `json:"idx_read_batch_size"`
	RightLookupReadBatchSize int            `json:"right_lookup_read_batch_size"`

	LeftTableFields    FieldRefs        // In the same order as lookup idx - important
	TableCreator       *TableCreatorDef // Populated when walking through al nodes
	UsedInFilterFields FieldRefs
	Filter             ast.Expr
}

func (*LookupDef) CheckFilterCondition 

func (lkpDef *LookupDef) CheckFilterCondition(varsFromLookup eval.VarValuesMap) (bool, error)

func (*LookupDef) CheckPagedBatchSize 

func (lkpDef *LookupDef) CheckPagedBatchSize() error

func (*LookupDef) ParseFilter 

func (lkpDef *LookupDef) ParseFilter() error

func (*LookupDef) UsesFilter 

func (lkpDef *LookupDef) UsesFilter() bool

func (*LookupDef) ValidateJoinType 

func (lkpDef *LookupDef) ValidateJoinType() error

type LookupJoinType 

type LookupJoinType string
const (
	LookupJoinInner LookupJoinType = "inner"
	LookupJoinLeft  LookupJoinType = "left"
)

type NodeRerunPolicy 

type NodeRerunPolicy string
const (
	NodeRerun NodeRerunPolicy = "rerun" // Default
	NodeFail  NodeRerunPolicy = "fail"
)

type NodeStartPolicy 

type NodeStartPolicy string
const (
	NodeStartManual NodeStartPolicy = "manual"
	NodeStartAuto   NodeStartPolicy = "auto" // Default
)

type NodeType 

type NodeType string
const (
	NodeTypeNone                NodeType = "none"
	NodeTypeFileTable           NodeType = "file_table"
	NodeTypeTableTable          NodeType = "table_table"
	NodeTypeTableLookupTable    NodeType = "table_lookup_table"
	NodeTypeTableFile           NodeType = "table_file"
	NodeTypeTableCustomTfmTable NodeType = "table_custom_tfm_table"
	NodeTypeDistinctTable       NodeType = "distinct_table"
)

type ParquetCodecType added in v1.1.9 

type ParquetCodecType string
const (
	ParquetCodecGzip         ParquetCodecType = "gzip"
	ParquetCodecSnappy       ParquetCodecType = "snappy"
	ParquetCodecUncompressed ParquetCodecType = "uncompressed"
)

type ParquetCreatorSettings added in v1.1.9 

type ParquetCreatorSettings struct {
	Codec ParquetCodecType `json:"codec"`
}

type ParquetReaderColumnSettings added in v1.1.9 

type ParquetReaderColumnSettings struct {
	SrcColName string `json:"col_name"`
}

type ReadyToRunNodeCmdType 

type ReadyToRunNodeCmdType string
const (
	NodeNone ReadyToRunNodeCmdType = "none"
	NodeGo   ReadyToRunNodeCmdType = "go"
	NodeWait ReadyToRunNodeCmdType = "wait"
	NodeNogo ReadyToRunNodeCmdType = "nogo"
)

type ScriptDef 

type ScriptDef struct {
	ScriptNodes           map[string]*ScriptNodeDef  `json:"nodes"`
	RawDependencyPolicies map[string]json.RawMessage `json:"dependency_policies"`
	TableCreatorNodeMap   map[string](*ScriptNodeDef)
	IndexNodeMap          map[string](*ScriptNodeDef)
}

func (*ScriptDef) Deserialize 

func (scriptDef *ScriptDef) Deserialize(jsonBytesScript []byte, customProcessorDefFactory CustomProcessorDefFactory, customProcessorsSettings map[string]json.RawMessage, caPath string, privateKeys map[string]string) error

func (*ScriptDef) GetAffectedNodes 

func (scriptDef *ScriptDef) GetAffectedNodes(startNodeNames []string) []string

type ScriptInitProblemType added in v1.1.3 

type ScriptInitProblemType int
const ScriptInitConnectivityProblem ScriptInitProblemType = 3
const ScriptInitContentProblem ScriptInitProblemType = 2
const ScriptInitNoProblem ScriptInitProblemType = 0
const ScriptInitUrlProblem ScriptInitProblemType = 1

type ScriptNodeDef 

type ScriptNodeDef struct {
	Name                string          // Get it from the key
	Type                NodeType        `json:"type"`
	Desc                string          `json:"desc"`
	StartPolicy         NodeStartPolicy `json:"start_policy"`
	RerunPolicy         NodeRerunPolicy `json:"rerun_policy,omitempty"`
	CustomProcessorType string          `json:"custom_proc_type,omitempty"`
	HandlerExeType      string          `json:"handler_exe_type,omitempty"`

	RawReader   json.RawMessage `json:"r"` // This depends on tfm type
	TableReader TableReaderDef
	FileReader  FileReaderDef

	Lookup LookupDef `json:"l"`

	RawProcessorDef json.RawMessage    `json:"p"` // This depends on tfm type
	CustomProcessor CustomProcessorDef // Also should implement CustomProcessorRunner

	RawWriter            json.RawMessage `json:"w"` // This depends on tfm type
	DependencyPolicyName string          `json:"dependency_policy"`
	TableCreator         TableCreatorDef
	TableUpdater         TableUpdaterDef
	FileCreator          FileCreatorDef
	DepPolDef            *DependencyPolicyDef
}

func (*ScriptNodeDef) Deserialize 

func (node *ScriptNodeDef) Deserialize(customProcessorDefFactory CustomProcessorDefFactory, customProcessorsSettings map[string]json.RawMessage, caPath string, privateKeys map[string]string) error

func (*ScriptNodeDef) GetTargetName 

func (node *ScriptNodeDef) GetTargetName() string

func (*ScriptNodeDef) GetTokenIntervalsByNumberOfBatches 

func (node *ScriptNodeDef) GetTokenIntervalsByNumberOfBatches() ([][]int64, error)

func (*ScriptNodeDef) GetUniqueIndexesFieldRefs 

func (node *ScriptNodeDef) GetUniqueIndexesFieldRefs() *FieldRefs

func (*ScriptNodeDef) HasCustomProcessor 

func (node *ScriptNodeDef) HasCustomProcessor() bool

func (*ScriptNodeDef) HasFileCreator 

func (node *ScriptNodeDef) HasFileCreator() bool

func (*ScriptNodeDef) HasFileReader 

func (node *ScriptNodeDef) HasFileReader() bool

func (*ScriptNodeDef) HasLookup 

func (node *ScriptNodeDef) HasLookup() bool

func (*ScriptNodeDef) HasTableCreator 

func (node *ScriptNodeDef) HasTableCreator() bool

func (*ScriptNodeDef) HasTableReader 

func (node *ScriptNodeDef) HasTableReader() bool

type TableCreatorDef 

type TableCreatorDef struct {
	Name                          string                         `json:"name"`
	RawHaving                     string                         `json:"having,omitempty"`
	Having                        ast.Expr                       `json:"-"`
	UsedInHavingFields            FieldRefs                      `json:"-"`
	UsedInTargetExpressionsFields FieldRefs                      `json:"-"`
	Fields                        map[string]*WriteTableFieldDef `json:"fields,omitempty"`
	RawIndexes                    map[string]string              `json:"indexes,omitempty"`
	Indexes                       IdxDefMap                      `json:"-"`
}

func (*TableCreatorDef) CalculateTableRecordFromSrcVars 

func (tcDef *TableCreatorDef) CalculateTableRecordFromSrcVars(canUseAggFunc bool, srcVars eval.VarValuesMap) (map[string]any, error)

func (*TableCreatorDef) CheckTableRecordHavingCondition 

func (tcDef *TableCreatorDef) CheckTableRecordHavingCondition(tableRecord map[string]any) (bool, error)

func (*TableCreatorDef) Deserialize 

func (tcDef *TableCreatorDef) Deserialize(rawWriter json.RawMessage) error

func (*TableCreatorDef) GetFieldDefaultReadyForDb 

func (tcDef *TableCreatorDef) GetFieldDefaultReadyForDb(fieldName string) (any, error)

func (*TableCreatorDef) GetFieldRefs 

func (tcDef *TableCreatorDef) GetFieldRefs() *FieldRefs

func (*TableCreatorDef) GetFieldRefsWithAlias 

func (tcDef *TableCreatorDef) GetFieldRefsWithAlias(useTableAlias string) *FieldRefs

func (*TableCreatorDef) GetSingleUniqueIndexDef added in v1.1.18 

func (tcDef *TableCreatorDef) GetSingleUniqueIndexDef() (string, *IdxDef, error)

type TableFieldType 

type TableFieldType string
const (
	FieldTypeString   TableFieldType = "string"
	FieldTypeInt      TableFieldType = "int"      // sign+18digit string
	FieldTypeFloat    TableFieldType = "float"    // sign+64digit string, 32 digits after point
	FieldTypeBool     TableFieldType = "bool"     // F or T
	FieldTypeDecimal2 TableFieldType = "decimal2" // sign + 18digit+point+2
	FieldTypeDateTime TableFieldType = "datetime" // int unix epoch milliseconds
	FieldTypeUnknown  TableFieldType = "unknown"
)

type TableReaderDef 

type TableReaderDef struct {
	TableName            string           `json:"table"`
	ExpectedBatchesTotal int              `json:"expected_batches_total,omitempty"`
	RowsetSize           int              `json:"rowset_size,omitempty"` // DefaultRowsetSize = 1000
	TableCreator         *TableCreatorDef `json:"-"`
}

type TableUpdaterDef 

type TableUpdaterDef struct {
	Fields map[string]*WriteTableFieldDef `json:"fields"`
}

type TopDef 

type TopDef struct {
	Limit       int    `json:"limit"`
	RawOrder    string `json:"order"`
	OrderIdxDef IdxDef // Not an index really, we just re-use IdxDef infrastructure
}

type WriteCsvColumnSettings added in v1.1.9 

type WriteCsvColumnSettings struct {
	Format string `json:"format"`
	Header string `json:"header"`
}

type WriteFileColumnDef 

type WriteFileColumnDef struct {
	RawExpression    string                     `json:"expression"`
	Name             string                     `json:"name"` // To be used in Having
	Type             TableFieldType             `json:"type"` // To be checked when checking expressions and to be used in Having
	Csv              WriteCsvColumnSettings     `json:"csv,omitempty"`
	Parquet          WriteParquetColumnSettings `json:"parquet,omitempty"`
	ParsedExpression ast.Expr                   `json:"-"`
	UsedFields       FieldRefs                  `json:"-"`
}

type WriteParquetColumnSettings added in v1.1.9 

type WriteParquetColumnSettings struct {
	ColumnName string `json:"column_name"`
}

type WriteTableFieldDef 

type WriteTableFieldDef struct {
	RawExpression    string         `json:"expression"`
	Type             TableFieldType `json:"type"`
	DefaultValue     string         `json:"default_value,omitempty"` // Optional. If omitted, default zero value is used
	ParsedExpression ast.Expr       `json:"-"`
	UsedFields       FieldRefs      `json:"-"`
}

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