##Źródło danych
##Procedura oczyszczenia danych
-
Pobranie ze strony plików csv z danymi.
-
Import danych do google refine.
-
Oczyszczenie danych. Procedura oczyszczania obejowała między innymi przebudowanie kolumny transakcji, poprawienie formatu danych, eliminację literówek oraz powtórzeń, skorzystanie z funkcji 'reconcile' i 'cluster'.
{
"File" : "refine2.csv",
"Department family" : "Home Office",
"Entity" : "Home Office",
"Date" : "13.05.2010",
"Expense type" : "Science; Technical & Research.Social Research",
"Expense area" : "CPG - Crime & Policing Group",
"Supplier" : "MATRIX RESEARCH AND CONSULTANCY LTD",
"Transaction number" : 1715492,
"Transaction code" : "",
"Amount" : "35 177.15"
},
{
"File" : "refine2.csv",
"Department family" : "Home Office",
"Entity" : "Home Office",
"Date" : "14.05.2010",
"Expense type" : "Grant",
"Expense area" : "CPG - Crime & Policing Group",
"Supplier" : "HAMPSHIRE POLICE AUTHORITY 1 (G)",
"Transaction number" : 372696,
"Transaction code" : "",
"Amount" : "67 571.34"
},
{
"File" : "refine2.csv",
"Department family" : "Home Office",
"Entity" : "Home Office",
"Date" : "14.05.2010",
"Expense type" : "IT; Broadcasting & Telecomms.IT Run Costs other -Prog",
"Expense area" : "CPG - Crime & Policing Group",
"Supplier" : "ALTIUS CONSULTING LTD",
"Transaction number" : 1673343,
"Transaction code" : "",
"Amount" : "30 667.50"
},
db.nosql.aggregate( {
$group : {
_id : "$Supplier",
suma : { $sum : "$Amount" },
srednia : { $avg : "$Amount" }
}
},{
$match : {
suma : { $gte : 1000000 }
}
} )
{
"_id" : "GREATER MANCHESTER POLICE AUTHORITY",
"suma" : 1304135.25,
"srednia" : 93152.51785714286
},
{
"_id" : "HAMPSHIRE POLICE AUTHORITY (G)",
"suma" : 1016387.14,
"srednia" : 92398.8309090909
},
{
"_id" : "WEST MIDLANDS POLICE AUTHORITY",
"suma" : 1420959.72,
"srednia" : 74787.35368421052
}
db.nosql.aggregate( {
$group : {
_id : "$Supplier",
suma : { $sum : "$Amount" },
srednia : { $avg : "$Amount" }
}
}, {
$match : {
suma : { $gte : 1000000 }
}
}, {
$sort: {
suma: -1,
srednia: -1
}
} )
{
"_id" : "GREATER LONDON AUTHORITY (G)",
"suma" : 4466373.05,
"srednia" : 279148.31562500005
},
{
"_id" : "Airwave Solutions Ltd",
"suma" : 2824137.43,
"srednia" : 24992.36663716815
},
{
"_id" : "G4S CARE & JUSTICE SERVICES (UK) LTD",
"suma" : 2567252.41,
"srednia" : 20214.5859055118
}
db.nosql.aggregate( {
$group : {
_id : "$Supplier",
suma : { $sum : "$Amount" },
srednia : { $avg : "$Amount" }
}
}, {
$match : {
suma : { $gte : 100000 }
}
}, {
$sort: { srednia: -1 }
}, { $limit : 5 } )
{"result" : [
{
"_id" : "GREATER LONDON AUTHORITY (G)",
"suma" : 4466373.050000001,
"srednia" : 279148.31562500005
},
{
"_id" : "HMRC",
"suma" : 390069.07,
"srednia" : 195034.535
},
{
"_id" : "IBM UNITED KINGDOM LIMITED",
"suma" : 394025.48,
"srednia" : 98506.37
},
{
"_id" : "WELSH ASSEMBLY GOVERNMENT (G)",
"suma" : 98058.5,
"srednia" : 98058.5
},
{
"_id" : "GREATER MANCHESTER POLICE AUTHORIT",
"suma" : 1304135.25,
"srednia" : 93152.51785714286
}
],
"ok" : 1}
[
{
"op": "core/text-transform",
"description": "Text transform on cells in column Date using expression grel:value.replace(\"/\", \".\")",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Date",
"expression": "grel:value.replace(\"/\", \".\")",
"onError": "keep-original",
"repeat": false,
"repeatCount": 10
},
{
"op": "core/text-transform",
"description": "Text transform on cells in column Amount using expression grel:value.replace(\";\", \" \")",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Amount",
"expression": "grel:value.replace(\";\", \" \")",
"onError": "keep-original",
"repeat": false,
"repeatCount": 10
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"0"
],
"to": ""
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"CPG - Crime & Policing Group "
],
"to": "CPG - Crime & Policing Group"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"IPCC - Independent Police Complaints Commision"
],
"to": "IPCC - Independent Police Complaints Commission"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"IPS - Identity & Passport Services"
],
"to": "IPS - Identity & Passport Service"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Office services"
],
"to": "Office Services"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Office services "
],
"to": "Office Services "
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Office Services "
],
"to": "Office Services"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"OSCT - Office of Security & Counter Terrorism"
],
"to": "OSCT - Office of Security & Counter-Terrorism"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"OSCT - Office of Security & Counter-Terrorism"
],
"to": "OSCT - Office of Security and Counter-Terrorism"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"PFD*"
],
"to": "PFD"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense area",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense area",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"UKBA - UK Border Agency"
],
"to": "UKBA - UK Borders Agency"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Supplier",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Supplier",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"GLOUCESTERSHIRE POLICE AUTHORITY (",
"GLOUCESTERSHIRE POLICE AUTHORITY",
"Gloucestershire Police Authority"
],
"to": "GLOUCESTERSHIRE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"EDF Energy",
"EDF ENERGY"
],
"to": "EDF Energy"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"THE METROPOLITAN POLICE",
"The Metropolitan Police"
],
"to": "THE METROPOLITAN POLICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Derbyshire Police Authority",
"DERBYSHIRE POLICE AUTHORITY"
],
"to": "Derbyshire Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Durham Police Authority",
"DURHAM POLICE AUTHORITY"
],
"to": "Durham Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"HEALTH MANAGEMENT LTD",
"Health Management Ltd"
],
"to": "HEALTH MANAGEMENT LTD"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Airwave Solutions Ltd",
"AIRWAVE SOLUTIONS LTD"
],
"to": "Airwave Solutions Ltd"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"BT Global Services",
"BT GLOBAL SERVICES"
],
"to": "BT Global Services"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"THAMES VALLEY POLICE AUTHORITY",
"Thames Valley Police Authority"
],
"to": "THAMES VALLEY POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Reed Employment plc",
"REED EMPLOYMENT PLC"
],
"to": "Reed Employment plc"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Field Fisher Waterhouse LLP",
"FIELD FISHER WATERHOUSE LLP"
],
"to": "Field Fisher Waterhouse LLP"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"WEST MIDLANDS POLICE",
"West Midlands Police"
],
"to": "WEST MIDLANDS POLICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Lancashire Police Authority",
"LANCASHIRE POLICE AUTHORITY"
],
"to": "Lancashire Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"BT",
"BT "
],
"to": "BT"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"MANCHESTER AIRPORT PLC",
"Manchester Airport PLC"
],
"to": "MANCHESTER AIRPORT PLC"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Capita Resourcing Ltd",
"CAPITA RESOURCING LTD"
],
"to": "Capita Resourcing Ltd"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"CAPITA BUSINESS SERVICES LTD",
"Capita Business Services Ltd"
],
"to": "CAPITA BUSINESS SERVICES LTD"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"GREATER MANCHESTER POLICE",
"Greater Manchester Police"
],
"to": "GREATER MANCHESTER POLICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"OGC BUYING SOLUTIONS",
"OGC Buying Solutions"
],
"to": "OGC BUYING SOLUTIONS"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Company Watch Ltd",
"COMPANY WATCH LTD"
],
"to": "Company Watch Ltd"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"HUMBERSIDE POLICE AUTHORITY",
"Humberside Police Authority"
],
"to": "HUMBERSIDE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"FCO SERVICES",
"FCO Services"
],
"to": "FCO SERVICES"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"LEICESTERSHIRE POLICE AUTHORITY (G",
"LEICESTERSHIRE POLICE AUTHORITY (G)"
],
"to": "LEICESTERSHIRE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"FORENSIC SCIENCE SERVICE",
"Forensic Science Service"
],
"to": "FORENSIC SCIENCE SERVICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Central Office of Information",
"CENTRAL OFFICE OF INFORMATION"
],
"to": "Central Office of Information"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Atkins Ltd",
"ATKINS LTD"
],
"to": "Atkins Ltd"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Specialist Computer Centres PLC",
"SPECIALIST COMPUTER CENTRES PLC"
],
"to": "Specialist Computer Centres PLC"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"PARITY RESOURCES LTD",
"Parity Resources Ltd"
],
"to": "PARITY RESOURCES LTD"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"LINCOLNSHIRE POLICE AUTHORITY",
"Lincolnshire Police Authority"
],
"to": "LINCOLNSHIRE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"SIEMENS BUSINESS SERVICES LTD",
"Siemens Business Services Ltd"
],
"to": "SIEMENS BUSINESS SERVICES LTD"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Logica CMG UK Ltd",
"LOGICA CMG UK LTD"
],
"to": "Logica CMG UK Ltd"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"AUDIT COMMISSION",
"Audit Commission"
],
"to": "AUDIT COMMISSION"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"PENNA PLC",
"Penna PLC"
],
"to": "PENNA PLC"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Cleveland Police Authority",
"CLEVELAND POLICE AUTHORITY"
],
"to": "Cleveland Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"CAPITA BUSINESS TRAVEL",
"Capita Business Travel"
],
"to": "CAPITA BUSINESS TRAVEL"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"NATIONAL AUDIT OFFICE",
"National Audit Office"
],
"to": "NATIONAL AUDIT OFFICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"MERSEYSIDE POLICE AUTHORITY",
"Merseyside Police Authority"
],
"to": "MERSEYSIDE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Essex Police Authority",
"ESSEX POLICE AUTHORITY"
],
"to": "Essex Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"SOUTH YORKSHIRE POLICE",
"South Yorkshire Police"
],
"to": "SOUTH YORKSHIRE POLICE"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"OCS GROUP UK LTD",
"OCS GROUP UK LTD "
],
"to": "OCS GROUP UK LTD"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Surrey Police Authority",
"SURREY POLICE AUTHORITY"
],
"to": "Surrey Police Authority"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"British Transport Police",
"BRITISH TRANSPORT POLICE"
],
"to": "British Transport Police"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Supplier",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Supplier",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"LEICESTERSHIRE POLICE AUTHORITY",
"Leicestershire Police Authorit"
],
"to": "LEICESTERSHIRE POLICE AUTHORITY"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"NORTHAMPTONSHIRE COUNTY COUNCIL 2",
"NORTHAMPTONSHIRE COUNTY COUNCIL 1"
],
"to": "NORTHAMPTONSHIRE COUNTY COUNCIL"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"NOTTINGHAMSHIRE POLICE AUTHORITY 2",
"NOTTINGHAMSHIRE POLICE AUTHORITY 1"
],
"to": "NOTTINGHAMSHIRE POLICE AUTHORITY"
}
]
},
{
"op": "core/text-transform",
"description": "Text transform on cells in column Transaction number using expression grel:value.replace(\" \", \"\")",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Transaction number",
"expression": "grel:value.replace(\" \", \"\")",
"onError": "keep-original",
"repeat": false,
"repeatCount": 10
},
{
"op": "core/text-transform",
"description": "Text transform on cells in column Transaction number using expression value.toNumber()",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Transaction number",
"expression": "value.toNumber()",
"onError": "keep-original",
"repeat": false,
"repeatCount": 10
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense type",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense type",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Grant",
"GRANT"
],
"to": "Grant"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Licensing costs",
"Licensing Costs"
],
"to": "Licensing costs"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Legal costs",
"Legal Costs "
],
"to": "Legal costs"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Publicity & Advertising",
"Advertising & Publicity"
],
"to": "Publicity & Advertising"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"IT Services",
"IT services"
],
"to": "IT Services"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Legal fees",
"Legal Fees"
],
"to": "Legal fees"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"OGD's; Councils & Police Authorities",
"OGDs; Councils & Police Authorities"
],
"to": "OGD's; Councils & Police Authorities"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Rent",
"Rent "
],
"to": "Rent"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"IT & Telecoms Components.Standard Software (FA)",
"IT & Telecoms Components.Standard Software (FA)"
],
"to": "IT & Telecoms Components.Standard Software (FA)"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Audit Fees - external",
"External Audit Fees"
],
"to": "External Audit Fees"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"IT & Telecoms Components.Computer Equip (FA)",
"IT & Telecoms Components.Computer Equip (FA)"
],
"to": "IT & Telecoms Components.Computer Equip (FA)"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense type",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense type",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Adelphi Ongoing Costs",
"Adelphi ongoing cost"
],
"to": "Adelphi Ongoing Costs"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"CRB Disclosures",
"CRB Disclosure"
],
"to": "CRB Disclosures"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Law Enforcement & safety Equip.Maint&Rep of Plant&Mach–PROG",
"Law Enforcement & safety Equip.Maint&Rep of Plant&MachűPROG"
],
"to": "Law Enforcement & safety Equip.Maint&Rep of Plant&Mach–PROG"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"IT; Broadcasting & Telecomms.IT Run Cost ű Info Support",
"IT; Broadcasting & Telecomms.IT Run Cost – Info Support"
],
"to": "IT; Broadcasting & Telecomms.IT Run Cost – Info Support"
},
{
"fromBlank": false,
"fromError": false,
"from": [
"Professional & Admin Services.SBS PFI ű Infra & Helpdesk",
"Professional & Admin Services.SBS PFI – Infra & Helpdesk"
],
"to": "Professional & Admin Services.SBS PFI – Infra & Helpdesk"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense type",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense type",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Politics & Civic Affairs.Human aid & relief Sect 4",
"Politics & Civic Affairs.Human aid & relief Sect 5"
],
"to": "Politics & Civic Affairs.Human aid & relief Sect"
}
]
},
{
"op": "core/mass-edit",
"description": "Mass edit cells in column Expense type",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Expense type",
"expression": "value",
"edits": [
{
"fromBlank": false,
"fromError": false,
"from": [
"Politics & Civic Affairs.Human aid & relief Sect 4",
"Politics & Civic Affairs.Human aid & relief Sect 5"
],
"to": "Politics & Civic Affairs.Human aid & relief Sect"
}
]
},
{
"op": "core/column-addition",
"description": "Create column Transaction code at index 8 based on column Transaction number using expression grel:if(isNumeric(value), \"\", value)",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"newColumnName": "Transaction code",
"columnInsertIndex": 8,
"baseColumnName": "Transaction number",
"expression": "grel:if(isNumeric(value), \"\", value)",
"onError": "set-to-blank"
},
{
"op": "core/text-transform",
"description": "Text transform on cells in column Transaction number using expression grel:if(isNumeric(value), value, \"\")",
"engineConfig": {
"facets": [],
"mode": "row-based"
},
"columnName": "Transaction number",
"expression": "grel:if(isNumeric(value), value, \"\")",
"onError": "keep-original",
"repeat": false,
"repeatCount": 10
},
{
"op": "core/recon",
"description": "Reconcile cells in column Supplier to type /people/person",
"columnName": "Supplier",
"config": {
"mode": "standard-service",
"service": "http://4.standard-reconcile.dfhuynh.user.dev.freebaseapps.com/reconcile",
"identifierSpace": "http://rdf.freebase.com/ns/type.object.mid",
"schemaSpace": "http://rdf.freebase.com/ns/type.object.id",
"type": {
"id": "/people/person",
"name": "/people/person"
},
"autoMatch": true,
"columnDetails": []
},
"engineConfig": {
"facets": [],
"mode": "row-based"
}
},
{
"op": "core/column-removal",
"description": "Remove column Column4",
"columnName": "Column4"
},
{
"op": "core/column-removal",
"description": "Remove column Column",
"columnName": "Column"
},
{
"op": "core/column-removal",
"description": "Remove column Column2",
"columnName": "Column2"
},
{
"op": "core/column-removal",
"description": "Remove column Column3",
"columnName": "Column3"
}
]