diff --git a/cmd/root.go b/cmd/root.go index 233457f..df54416 100644 --- a/cmd/root.go +++ b/cmd/root.go @@ -47,6 +47,7 @@ var ( inLimitReadF bool inLimitRead int inNull nilString + inRowNumber bool outFormat string outFile string @@ -193,6 +194,7 @@ func run(writer io.Writer, cfg *dbConfig, args []string) error { trdsql.InLimitRead(inLimitReadF), trdsql.InNeedNULL(inNull.valid), trdsql.InNULL(inNull.str), + trdsql.InRowNumber(inRowNumber), ) if outFile != "" { @@ -357,6 +359,7 @@ func init() { rootCmd.PersistentFlags().IntVar(&inLimitRead, "limit", 0, "limited number of rows to read.") rootCmd.PersistentFlags().StringVar(&inJQuery, "jq", "", "jq expression string for input(JSON/JSONL only).") rootCmd.PersistentFlags().Var(&inNull, "null", "value(string) to convert to null on input.") + rootCmd.PersistentFlags().BoolVarP(&inRowNumber, "row-number", "n", false, "add row number.") rootCmd.PersistentFlags().StringVarP(&inFormat, "in", "i", "GUESS", "format for input. [CSV|LTSV|JSON|YAML|TBLN|WIDTH]") rootCmd.RegisterFlagCompletionFunc("in", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { diff --git a/go.mod b/go.mod index d1befa7..bcd701c 100644 --- a/go.mod +++ b/go.mod @@ -7,10 +7,10 @@ require ( github.com/iancoleman/orderedmap v0.3.0 github.com/itchyny/gojq v0.12.16 github.com/jwalton/gchalk v1.3.0 - github.com/klauspost/compress v1.17.9 + github.com/klauspost/compress v1.17.11 github.com/lib/pq v1.10.9 github.com/mattn/go-runewidth v0.0.16 - github.com/mattn/go-sqlite3 v1.14.22 + github.com/mattn/go-sqlite3 v1.14.24 github.com/multiprocessio/go-sqlite3-stdlib v0.0.0-20220822170115-9f6825a1cd25 github.com/noborus/guesswidth v0.4.0 github.com/noborus/sqlss v0.1.0 @@ -20,8 +20,8 @@ require ( github.com/spf13/cobra v1.8.1 github.com/spf13/viper v1.18.2 github.com/ulikunitz/xz v0.5.12 - golang.org/x/term v0.23.0 - modernc.org/sqlite v1.32.0 + golang.org/x/term v0.25.0 + modernc.org/sqlite v1.33.1 ) require ( @@ -53,22 +53,22 @@ require ( github.com/subosito/gotenv v1.6.0 // indirect go.uber.org/atomic v1.9.0 // indirect go.uber.org/multierr v1.9.0 // indirect - golang.org/x/crypto v0.26.0 // indirect - golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa // indirect - golang.org/x/sys v0.24.0 // indirect - golang.org/x/text v0.17.0 // indirect - golang.org/x/xerrors v0.0.0-20240716161551-93cc26a95ae9 // indirect - gonum.org/v1/gonum v0.15.0 // indirect + golang.org/x/crypto v0.28.0 // indirect + golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c // indirect + golang.org/x/sys v0.26.0 // indirect + golang.org/x/text v0.19.0 // indirect + golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da // indirect + gonum.org/v1/gonum v0.15.1 // indirect gopkg.in/ini.v1 v1.67.0 // indirect gopkg.in/yaml.v3 v3.0.1 // indirect - modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a // indirect - modernc.org/libc v1.59.3 // indirect + modernc.org/gc/v3 v3.0.0-20241004144649-1aea3fae8852 // indirect + modernc.org/libc v1.61.0 // indirect modernc.org/mathutil v1.6.0 // indirect modernc.org/memory v1.8.0 // indirect modernc.org/strutil v1.2.0 // indirect modernc.org/token v1.1.0 // indirect ) -go 1.21 +go 1.22.0 -toolchain go1.22.2 +toolchain go1.23.2 diff --git a/go.sum b/go.sum index 7505001..1ee525a 100644 --- a/go.sum +++ b/go.sum @@ -52,8 +52,10 @@ github.com/jwalton/go-supportscolor v1.1.0/go.mod h1:hFVUAZV2cWg+WFFC4v8pT2X/S2q github.com/jwalton/go-supportscolor v1.2.0 h1:g6Ha4u7Vm3LIsQ5wmeBpS4gazu0UP1DRDE8y6bre4H8= github.com/jwalton/go-supportscolor v1.2.0/go.mod h1:hFVUAZV2cWg+WFFC4v8pT2X/S2qUUBYMioBD9AINXGs= github.com/klauspost/compress v1.4.1/go.mod h1:RyIbtBH6LamlWaDj8nUwkbUhJ87Yi3uG0guNDohfE1A= -github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA= -github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw= +github.com/klauspost/compress v1.17.10 h1:oXAz+Vh0PMUvJczoi+flxpnBEPxoER1IaAnU/NMPtT0= +github.com/klauspost/compress v1.17.10/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0= +github.com/klauspost/compress v1.17.11 h1:In6xLpyWOi1+C7tXUUWv2ot1QvBjxevKAaI6IXrJmUc= +github.com/klauspost/compress v1.17.11/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0= github.com/klauspost/cpuid v1.2.0/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek= github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE= github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk= @@ -74,8 +76,8 @@ github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk= github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc= github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w= -github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU= -github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y= +github.com/mattn/go-sqlite3 v1.14.24 h1:tpSp2G2KyMnnQu99ngJ47EIkWVmliIizyZBfPrBWDRM= +github.com/mattn/go-sqlite3 v1.14.24/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y= github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY= github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo= github.com/multiprocessio/go-sqlite3-stdlib v0.0.0-20220822170115-9f6825a1cd25 h1:bnhGk2UFFPqylhxTEffs1ehDRn4bEZsEoDH53Z4HqA8= @@ -142,12 +144,12 @@ go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc= go.uber.org/multierr v1.9.0 h1:7fIwc/ZtS0q++VgcfqFDxSBZVv/Xo49/SYnDFupUwlI= go.uber.org/multierr v1.9.0/go.mod h1:X2jQV1h+kxSjClGpnseKVIxpmcjrj7MNnI0bnlfKTVQ= golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4= -golang.org/x/crypto v0.26.0 h1:RrRspgV4mU+YwB4FYnuBoKsUapNIL5cohGAmSH3azsw= -golang.org/x/crypto v0.26.0/go.mod h1:GY7jblb9wI+FOo5y8/S2oY4zWP07AkOJ4+jxCqdqn54= -golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa h1:FRnLl4eNAQl8hwxVVC17teOw8kdjVDVAiFMtgUdTSRQ= -golang.org/x/exp v0.0.0-20231110203233-9a3e6036ecaa/go.mod h1:zk2irFbV9DP96SEBUUAy67IdHUaZuSnrz1n472HUCLE= -golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8= -golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c= +golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw= +golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U= +golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c h1:7dEasQXItcW1xKJ2+gg5VOiBnqWrJc+rq0DPKyvvdbY= +golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c/go.mod h1:NQtJDoLvd6faHhE7m4T/1IY708gDefGGjR/iUW8yQQ8= +golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0= +golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY= golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y= golang.org/x/sync v0.8.0 h1:3NFvSEYkUoMifnESzZl15y791HH1qU2xm6eCJU5ZPXQ= golang.org/x/sync v0.8.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= @@ -158,23 +160,23 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc golang.org/x/sys v0.0.0-20211004093028-2c5d950f24ef/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.24.0 h1:Twjiwq9dn6R1fQcyiK+wQyHWfaz/BJB+YIpzU/Cv3Xg= -golang.org/x/sys v0.24.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= +golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo= +golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= -golang.org/x/term v0.23.0 h1:F6D4vR+EHoL9/sWAWgAR1H2DcHr4PareCbAaCo1RpuU= -golang.org/x/term v0.23.0/go.mod h1:DgV24QBUrK6jhZXl+20l6UWznPlwAHm1Q1mGHtydmSk= +golang.org/x/term v0.25.0 h1:WtHI/ltw4NvSUig5KARz9h521QvRC8RmF/cuYqifU24= +golang.org/x/term v0.25.0/go.mod h1:RPyXicDX+6vLxogjjRxjgD2TKtmAO6NZBsBRfrOLu7M= golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= -golang.org/x/text v0.17.0 h1:XtiM5bkSOt+ewxlOE/aE/AKEHibwj/6gvWMl9Rsh0Qc= -golang.org/x/text v0.17.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY= +golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM= +golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY= golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= -golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg= -golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI= -golang.org/x/xerrors v0.0.0-20240716161551-93cc26a95ae9 h1:LLhsEBxRTBLuKlQxFBYUOU8xyFgXv6cOTp2HASDlsDk= -golang.org/x/xerrors v0.0.0-20240716161551-93cc26a95ae9/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90= -gonum.org/v1/gonum v0.15.0 h1:2lYxjRbTYyxkJxlhC+LvJIx3SsANPdRybu1tGj9/OrQ= -gonum.org/v1/gonum v0.15.0/go.mod h1:xzZVBJBtS+Mz4q0Yl2LJTk+OxOg4jiXZ7qBoM0uISGo= +golang.org/x/tools v0.26.0 h1:v/60pFQmzmT9ExmjDv2gGIfi3OqfKoEP6I5+umXlbnQ= +golang.org/x/tools v0.26.0/go.mod h1:TPVVj70c7JJ3WCazhD8OdXcZg/og+b9+tH/KxylGwH0= +golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da h1:noIWHXmPHxILtqtCOPIhSt0ABwskkZKjD3bXGnZGpNY= +golang.org/x/xerrors v0.0.0-20240903120638-7835f813f4da/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90= +gonum.org/v1/gonum v0.15.1 h1:FNy7N6OUZVUaWG9pTiD+jlhdQ3lMP+/LcTpJ6+a8sQ0= +gonum.org/v1/gonum v0.15.1/go.mod h1:eZTZuRFrzu5pcyjN5wJhcIhnUdNijYxX1T2IcrOGY0o= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= @@ -185,16 +187,16 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= modernc.org/cc/v4 v4.21.4 h1:3Be/Rdo1fpr8GrQ7IVw9OHtplU4gWbb+wNgeoBMmGLQ= modernc.org/cc/v4 v4.21.4/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ= -modernc.org/ccgo/v4 v4.20.7 h1:skrinQsjxWfvj6nbC3ztZPJy+NuwmB3hV9zX/pthNYQ= -modernc.org/ccgo/v4 v4.20.7/go.mod h1:UOkI3JSG2zT4E2ioHlncSOZsXbuDCZLvPi3uMlZT5GY= +modernc.org/ccgo/v4 v4.21.0 h1:kKPI3dF7RIag8YcToh5ZwDcVMIv6VGa0ED5cvh0LMW4= +modernc.org/ccgo/v4 v4.21.0/go.mod h1:h6kt6H/A2+ew/3MW/p6KEoQmrq/i3pr0J/SiwiaF/g0= modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE= modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ= modernc.org/gc/v2 v2.5.0 h1:bJ9ChznK1L1mUtAQtxi0wi5AtAs5jQuw4PrPHO5pb6M= modernc.org/gc/v2 v2.5.0/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU= -modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a h1:CfbpOLEo2IwNzJdMvE8aiRbPMxoTpgAJeyePh0SmO8M= -modernc.org/gc/v3 v3.0.0-20240801135723-a856999a2e4a/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4= -modernc.org/libc v1.59.3 h1:A4QAp1lRSn2/b4aU+wBtq+yeKgq/2BUevrj0p1ZNy2M= -modernc.org/libc v1.59.3/go.mod h1:EY/egGEU7Ju66eU6SBqCNYaFUDuc4npICkMWnU5EE3A= +modernc.org/gc/v3 v3.0.0-20241004144649-1aea3fae8852 h1:IYXPPTTjjoSHvUClZIYexDiO7g+4x+XveKT4gCIAwiY= +modernc.org/gc/v3 v3.0.0-20241004144649-1aea3fae8852/go.mod h1:Qz0X07sNOR1jWYCrJMEnbW/X55x206Q7Vt4mz6/wHp4= +modernc.org/libc v1.61.0 h1:eGFcvWpqlnoGwzZeZe3PWJkkKbM/3SUGyk1DVZQ0TpE= +modernc.org/libc v1.61.0/go.mod h1:DvxVX89wtGTu+r72MLGhygpfi3aUGgZRdAYGCAVVud0= modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4= modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo= modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E= @@ -203,8 +205,8 @@ modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4= modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0= modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc= modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss= -modernc.org/sqlite v1.32.0 h1:6BM4uGza7bWypsw4fdLRsLxut6bHe4c58VeqjRgST8s= -modernc.org/sqlite v1.32.0/go.mod h1:UqoylwmTb9F+IqXERT8bW9zzOWN8qwAIcLdzeBZs4hA= +modernc.org/sqlite v1.33.1 h1:trb6Z3YYoeM9eDL1O8do81kP+0ejv+YzgyFo+Gwy0nM= +modernc.org/sqlite v1.33.1/go.mod h1:pXV2xHxhzXZsgT/RtTFAPY6JJDEvOTcTdwADQCCWD4k= modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA= modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0= modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y= diff --git a/importer.go b/importer.go index 9ab261c..98f86c0 100644 --- a/importer.go +++ b/importer.go @@ -235,6 +235,10 @@ func ImportFile(ctx context.Context, db *DB, fileName string, readOpts *ReadOpts return "", err } + if readOpts.InRowNumber { + reader = newRowNumberReader(reader) + } + tableName := fileName if opts.InJQuery != "" { tableName = fmt.Sprintf("%s::jq%d", fileName, db.importCount) diff --git a/input_row_number.go b/input_row_number.go new file mode 100644 index 0000000..1104117 --- /dev/null +++ b/input_row_number.go @@ -0,0 +1,83 @@ +package trdsql + +import ( + "strconv" +) + +// rowNumberReader is a wrapper around a Reader that transforms. +type rowNumberReader struct { + reader Reader + originRow []any + lineCount int +} + +// newRowNumberReader creates a new TransformReader. +func newRowNumberReader(r Reader) *rowNumberReader { + columnNum := 1 + names, err := r.Names() + if err == nil { + columnNum = len(names) + } + originRow := make([]any, columnNum) + return &rowNumberReader{ + reader: r, + originRow: originRow, + lineCount: 0, + } +} + +// Names returns column names with an additional row number column. +func (r *rowNumberReader) Names() ([]string, error) { + number := "num" + names, err := r.reader.Names() + if err != nil { + return nil, err + } + + for i := 0; i < len(names)+1; i++ { + orig := number + for _, name := range names { + if number == name { + number = orig + strconv.Itoa(i) + i++ + continue + } + } + } + + return append([]string{number}, names...), nil +} + +// Types returns column types with an additional row number column. +func (r *rowNumberReader) Types() ([]string, error) { + types, err := r.reader.Types() + if err != nil { + return nil, err + } + return append([]string{"int"}, types...), nil +} + +// PreReadRow returns pre-read rows with an additional row number column. +func (r *rowNumberReader) PreReadRow() [][]any { + preReadRows := r.reader.PreReadRow() + for i := range preReadRows { + preReadRows[i] = append([]any{r.lineCount + i + 1}, preReadRows[i]...) + } + r.lineCount += len(preReadRows) + return preReadRows +} + +// ReadRow reads the rest of the row with an additional row number column. +func (r *rowNumberReader) ReadRow(row []any) ([]any, error) { + var err error + r.lineCount++ + r.originRow, err = r.reader.ReadRow(r.originRow) + if err != nil { + return nil, err + } + if len(r.originRow) == 0 { + return nil, nil + } + + return append([]any{r.lineCount}, r.originRow...), nil +} diff --git a/reader.go b/reader.go index 46a6e89..dbd6820 100644 --- a/reader.go +++ b/reader.go @@ -117,6 +117,9 @@ type ReadOpts struct { // IsTemporary is a flag whether to make temporary table. // default is true. IsTemporary bool + + // InRowNumber is a flag whether to add row number. + InRowNumber bool } // NewReadOpts Returns ReadOpts. @@ -132,6 +135,7 @@ func NewReadOpts(options ...ReadOpt) *ReadOpts { InJQuery: "", InNeedNULL: false, InNULL: "", + InRowNumber: false, } for _, option := range options { option(readOpts) @@ -212,6 +216,13 @@ func IsTemporary(t bool) ReadOpt { } } +// InRowNumber is a flag whether to add line number. +func InRowNumber(t bool) ReadOpt { + return func(args *ReadOpts) { + args.InRowNumber = t + } +} + // NewReader returns an Reader interface // depending on the file to be imported. func NewReader(reader io.Reader, readOpts *ReadOpts) (Reader, error) {