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xgdgsc avatar xgdgsc commented on September 6, 2024

I still get the MethodError of isdone as intially commented using 0.7.0 version of this package and julia 1.1.0, what could be the reason?

from libpq.jl.

iamed2 avatar iamed2 commented on September 6, 2024

Could you give a stack trace for the error?

from libpq.jl.

xgdgsc avatar xgdgsc commented on September 6, 2024
datat = (time = 63240480000000, symbol = "000001", macd = 0.13217593007179484, diff = 0.11147362266779684, dea = 0.020702307403998005)
Data.stream!(
    datat,
    LibPQ.Statement,
    conn,
    "INSERT INTO macd (time, symbol, macd, diff, dea) VALUES (\$1, \$2, \$3, \$4, \$5);",
)
MethodError: no method matching isdone(::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::Int64, ::Int64)
You may have intended to import Base.isdone
Closest candidates are:
  isdone(::Any, ::Any, ::Any, !Matched::Any, !Matched::Any) at /home/gsc/.julia/packages/DataStreams/saxcP/src/DataStreams.jl:152
  isdone(!Matched::Array{T,1} where T<:NamedTuple, ::Any, ::Any) at /home/gsc/.julia/packages/DataStreams/saxcP/src/namedtuples.jl:6
  isdone(!Matched::Array{T,1} where T<:NamedTuple, ::Any, ::Any, !Matched::Any, !Matched::Any) at /home/gsc/.julia/packages/DataStreams/saxcP/src/namedtuples.jl:4
  ...

Stacktrace:
 [1] isdone(::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::Int64, ::Int64, ::Int64, ::Int64) at /home/gsc/.julia/packages/DataStreams/saxcP/src/DataStreams.jl:152
 [2] macro expansion at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:628 [inlined]
 [3] stream!(::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::DataStreams.Data.Query{0x01,Tuple{DataStreams.Data.QueryColumn{0x01,Int64,1,1,:time,nothing,()},DataStreams.Data.QueryColumn{0x01,Char,2,2,:symbol,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,3,3,:macd,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,4,4,:diff,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,5,5,:dea,nothing,()}},(),nothing,nothing}, ::Type{DataStreams.Data.Row}, ::LibPQ.Statement, ::DataStreams.Data.Schema{true,Tuple{Int64,Char,Float64,Float64,Float64}}, ::Int64) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:618
 [4] #stream!#113(::Bool, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::Function, ::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::DataStreams.Data.Query{0x01,Tuple{DataStreams.Data.QueryColumn{0x01,Int64,1,1,:time,nothing,()},DataStreams.Data.QueryColumn{0x01,Char,2,2,:symbol,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,3,3,:macd,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,4,4,:diff,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,5,5,:dea,nothing,()}},(),nothing,nothing}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::Vararg{Any,N} where N) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:588
 [5] (::getfield(DataStreams.Data, Symbol("#kw##stream!")))(::NamedTuple{(:append,),Tuple{Bool}}, ::typeof(DataStreams.Data.stream!), ::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::DataStreams.Data.Query{0x01,Tuple{DataStreams.Data.QueryColumn{0x01,Int64,1,1,:time,nothing,()},DataStreams.Data.QueryColumn{0x01,Char,2,2,:symbol,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,3,3,:macd,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,4,4,:diff,nothing,()},DataStreams.Data.QueryColumn{0x01,Float64,5,5,:dea,nothing,()}},(),nothing,nothing}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::Vararg{Any,N} where N) at ./none:0
 [6] #stream!#111(::Bool, ::Dict{Int64,Function}, ::Function, ::Array{Any,1}, ::Array{Any,1}, ::Nothing, ::Nothing, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(DataStreams.Data.stream!), ::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::Vararg{Any,N} where N) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:538
 [7] stream!(::NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::String) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:516
 [8] top-level scope at In[40]:1

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iamed2 avatar iamed2 commented on September 6, 2024

Ah, DataStreams requires your data to be either a Vector of NamedTuples or a NamedTuple of Vectors. The easiest thing in your case is to just do:

Data.stream!(
    [datat],
    LibPQ.Statement,
    conn,
    "INSERT INTO macd (time, symbol, macd, diff, dea) VALUES (\$1, \$2, \$3, \$4, \$5);",
)

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xgdgsc avatar xgdgsc commented on September 6, 2024

Thanks. It works!

from libpq.jl.

iamed2 avatar iamed2 commented on September 6, 2024

Great!

from libpq.jl.

xgdgsc avatar xgdgsc commented on September 6, 2024

When there is only one datat of NamedTuple it works. If there is an array of NamedTuples it would through me an error like:

MethodError: no method matching schema(::Array{Any,1})
Closest candidates are:
  schema(::S, !Matched::DataStreams.Data.Query{code,columns,e,limit,offset}) where {code, S, columns, e, limit, offset} at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:217
  schema(::S, !Matched::DataStreams.Data.Query{code,columns,e,limit,offset}, !Matched::Any) where {code, S, columns, e, limit, offset} at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:217
  schema(!Matched::LibPQ.Result) at /home/gsc/.julia/packages/LibPQ/LODsS/src/datastreams.jl:4
  ...

Stacktrace:
 [1] #stream!#111(::Bool, ::Dict{Int64,Function}, ::Function, ::Array{Any,1}, ::Array{Any,1}, ::Nothing, ::Nothing, ::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}, ::typeof(DataStreams.Data.stream!), ::Array{Any,1}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::Vararg{Any,N} where N) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:534
 [2] stream!(::Array{Any,1}, ::Type{LibPQ.Statement}, ::LibPQ.Connection, ::String) at /home/gsc/.julia/packages/DataStreams/saxcP/src/query.jl:516
 [3] top-level scope at ./In[114]:22

when I run

Data.stream!(
                data_list,
                LibPQ.Statement,
                conn,
                "INSERT INTO " * dbName * string(param) * " (time, symbol, sma) 
                VALUES (\$1, \$2, \$3) ON CONFLICT (time, symbol) DO NOTHING;")

When I declare data_list as data_list = Vector(undef, 0). What is the correct way to use it as " Vector of NamedTuples " ?

from libpq.jl.

iamed2 avatar iamed2 commented on September 6, 2024

The eltype of the Vector needs to be a specific NamedTuple type, e.g. you'll need

Vector{NamedTuple{(:time, :symbol, :macd, :diff, :dea),Tuple{Int64,String,Float64,Float64,Float64}}}(undef, 0)

from libpq.jl.

xgdgsc avatar xgdgsc commented on September 6, 2024

Thanks!

from libpq.jl.

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